Carrier 50KQL-1PD User manual

Brand: Carrier

Model: 50KQL-1PD

Category: Heat pumps

Type: User manual

This manual is also suitable for

AQUAZONE RVR

Single-Package Console Water

Source Heat Pump with self-

contained line voltage thermostats.

• Suitable for either geothermal or

boiler/tower applications with

operating temperature range from

20 F to 110 F.

• Thermostatic expansion valve

(TXV) provides efficient and reliable

refrigerant flow

• Rubber grommet mounted

compressors for quiet operation

• Sloped top cabinet with powder

paint finish

• Right or left hand piping connection

• Multiple unit-mounted and remote

thermostat options

• Adaptable cabinet and subbase

configurations

• Factory-mounted flow regulators and

control valves for easy installation

• Flexible and reliable controls

accommodate all systems

Features/Benefits

Carrier’s Aquazone console

water source heat pumps are

a flexible, attractive

alternative for all finished

interior space, under-window

style installations.

Operating efficiency

Carrier Aquazone water source heat

pump (WSHP) units are designed for

quality and performance excellence

over their lifetime. Units offer standard

cooling EERs (Energy Efficiency

Ratios) up to 12.1 for boiler/tower

systems and as high as 19.5 for geo-

thermal applications. Heating COPs

(Coefficient of Performance) are as

high as 4.9, among the highest in the

industry.

AQUAZONE™

50KQL07-19

Water Source Heat Pumps

Console Unit

to 1

Nominal Tons

Product

Data

Quiet operation

The Carrier Console WSHP provides

exceptionally quiet operation for maxi-

mum comfort.

Design flexibility

Aquazone™ Console WSHP units are

offered in 5 capacity sizes and 3 differ-

ent voltages to meet individual zone

needs efficiently and effectively.

Standard and extended operating

range units are available to suit a

variety of application requirements.

Safe, reliable operation

Standard safety features include: high

and low pressure monitoring and field

selectable water and air coil freeze pro-

tection sensing. All safety controls may

be reset at the thermostat. Each unit is

tested and run at the factory to ensure

proper operation of all components

and safety switches.

All components are carefully

designed and selected for endurance,

durability, and carefree day-to-day

operation.

The water-to-refrigerant heat

exchanger has copper inner and steel

outer tubing which is painted on the

outside to provide corrosion resistance

protection. Cupronickel heat exchang-

ers are available and should be used on

all open loop applications.

Units are rated and certified in

accordance with ARI/ISO/ASHRAE

13256-1 performance standard, and

are CSA/NRTL listed.

Installation ease

The unit is packaged for simple, low

cost handling, with minimal time re-

quired for installation. The console unit

arrives at the jobsite fully assembled to

minimize installation time and reduce

installation cost. All units are pre-wired

and factory charged with R-22

refrigerant.

Water connections are available in a

variety of configurations direct from

the factory. The standard configuration

in. OD Sweat connections for

maximum flexibility in the field. Both

FPT and MPT are available as factory-

installed options to improve installation

efficiency. Additionally, factory-

installed motorized water shutoff

valves are available for use on energy

conserving systems employing a

variable pumping technique.

The standard electrical connections

are made quickly and directly to a pow-

er distribution terminal block. To fur-

ther improve installation efficiency, a

fused or unfused disconnect switch as

well as a 20 amp plug and cord are

available as factory-installed options.

in. ID vinyl condensate con-

nection is provided for connection to

the field-installed condensate line.

Compact cabinet design dimen-

sions are 12 in. deep, 48 in. wide and

24 in. tall (with 3 in. subbase). For flex-

ibility, the controls can be mounted on

the top right or left side. Additionally,

the sloped top design discourages the

use of the unit as a shelf or coffee hold-

er, preventing air blockage and any

spills from damaging the unit.

No-fuss maintenance and

serviceability

Regular maintenance or service to the

console WSHP units require little time.

Large service access panels enable

quick inspection for problem solving

and the control box swings down for

easy access to the controls.

Fan motor sleeve bearings are

permanently lubricated for worry-free

performance. If the unit does require

service, an easily removable cabinet

and slide out fan section make access

simple.

Refrigerant circuit protection is de-

signed to result in fewer service calls.

Units are equipped with easily accessi-

ble service access ports on both the

suction and the discharge refrigerant

lines for on-site testing and environ-

mentally correct refrigerant recovery.

Filter racks provide easy filter access

for cleaning.

Maximum control flexibility

Aquazone water source heat pumps

provide reliable control operation using

a standard microprocessor board.

Flexible alternatives for many direct

digital control (DDC) applications in-

clude the Carrier Comfort Network

(CCN) and open protocol systems.

Carrier’s Aquazone standard unit

solid-state control system, the Com-

plete C, provides control of the unit

compressor, reversing valve, fan, safety

features, and troubleshooting fault indi-

cation features. The Complete C is

one of the most user friendly, low cost,

and advanced control boards found in

the WSHP industry. Many features are

field selectable to provide the ultimate

in field installation flexibility. The

overall features of this standard control

system include:

50 va transformer — Assists in

accommodating accessory loads.

Table of contents

Page

Features/Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3

Model Number Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

ARI/ISO 13256-1 Capacity Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Physical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Options and Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-8

Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-13

Selection Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14,15

Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16-21

Application Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22-24

Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Typical Wiring Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25-31

Typical Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Guide Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33-36

NRTL/C

As an ENERGY STAR ®Partner,

Carrier Corporation has deter-

mined that this product meets

the E

NERGY STA R guidelines

for energy efficiency.

Anti-short cycle timer — Provides a

minimum off time to prevent the unit

from short cycling. The 5-minute timer

energizes when the compressor is

deenergized, resulting in a 5-minute

delay before the unit can be restarted.

Random start relay — Ensures a

random delay in energizing each differ-

ent WSHP unit. This option minimizes

peak electrical demand during start-up

from different operating modes or after

building power outages.

High and low pressure refrigerant

protection — Safeguards against

unreliable unit operation and prevents

refrigerant from leaking.

Condensate overflow sensor —

Electronic sensor mounted to the drain

pan. When condensate pan liquid

reaches an unacceptable level, the unit

is automatically deactivated and placed

in a lockout condition. The sensor

recognizes thirty continuous seconds

of overflow as a fault condition.

High and low voltage protection —

Safety protection for excessive or low

voltage conditions.

Automatic intelligent reset — Unit

shall automatically restart 5 minutes

after shutdown if the fault has cleared.

Should a fault occur 3 times sequen-

tially, lockout will occur.

Accessory output — In applications

such as variable speed pumping, a

24-v output cycles a motorized water

valve or damper actuator with

compressor.

Performance Monitor (PM) —

Unique feature monitors water temper-

atures to warn when the heat pump

is operating inefficiently or beyond

typical operating range. A field select-

able switch initiates a warning code on

the unit display.

Water coil freeze protection

(selectable for water or anti-

freeze) — Field selectable switch for

water and water/glycol solution sys-

tems initiates a fault when tempera-

tures exceed the selected limit for

30 continuous seconds.

Air coil freeze protection (check

filter operation) — Field selectable

switch for assessing excessive filter

pressure drop initiates a fault when

temperatures exceed the selected limit

for 30 continuous seconds.

Alarm relay setting — Selectable

24-v or pilot duty dry contact provides

remote alarm activation.

Electric heat option — Output pro-

vided on the controller for operating

two stages of emergency electric heat.

Service test mode with diagnostic

LED (light-emitting diode) — Test

mode allows service personnel to

check the operation of the WSHP and

control system efficiently. Upon enter-

ing Test mode, time delays speed up,

and the Status LED flashes a code

indicating the last fault. This mode

provides easy fault diagnosis; based on

the fault code the status LED flashes,

Carrier provided troubleshooting tables

provide easy reference to typical

problems.

LED visual output — An LED panel

indicates high pressure, low pressure,

low voltage, high voltage, air/water

freeze protection, condensate over-

flow, and control status.

Carrier PremierLink™ control-

ler adds reliability, efficiency,

and simplification

The PremierLink direct digital control-

ler can be ordered as a factory-installed

option. Designed and manufactured

exclusively by Carrier, the controller

can be used to actively monitor and

control all modes of operation as well

as monitor the following diagnostics

and features: unit number, zone tem-

perature, zone set point, zone humidity

set point, discharge air temperatures,

fan status, stages of heating, cooling

stages, outdoor-air temperature,

leaving-air temperature, leaving water

temperature, alarm status, and alarm

lockout condition.

This controller has 38.4K baud

communications capability and is com-

patible with ComfortLink™ Controls,

CCN and ComfortVIEW™ Software.

The Scrolling Marquee and Navigator

are optional tools used for program-

ming and monitoring the unit for opti-

mal performance. Adding the Carrier

sensor in the conditioned space

provides ASHRAE 62-99 compliance

and Demand Control Ventilation

(DCV). A DCV control strategy is espe-

cially beneficial for a water source heat

pump system to minimize the energy

used to condition ventilation air. In

combination with energy efficient

Aquazone units, DCV may be the most

energy efficient approach ever devel-

oped for a water source heat pump

system.

The PremierLink peer-to-peer,

Internet ready communicating control

is designed specifically for Constant

Volume and Variable Volume Tempera-

ture applications. This comprehensive

controls system allows water source

heat pumps to be linked together, cre-

ating a fully functional HVAC (heating,

ventilation, and air conditioning) auto-

mation system.

Features/Benefits (cont)

Model number nomenclature

50KQL07SAEC101AA

Aquazone™ High-Efficiency R-22

Water Source Heat Pump

50KQL – Console Unit

Size – Nominal Capacity (Tons)

07 – 1/2

09 – 3/4

12 –1

15 – 1 1/4

19 – 1 1/2

Power Termination

A – Field-Connected Hard Wired

B – 20A Plug and Cord**

D – Disconnect switch, 15A fuse

F – Disconnect switch, non-fused

H – 20A Plug, Cord, Receptacle,

Disconnect Switch, 15A Fuse

K – 20A Plug, Cord, Disconnect

Switch, No Fuse

Packaging

1 – Domestic

Revision Code

0 – Current revision

Power Supply

1 – 115V-1 Ph-60 Hz††

3 – 208/230V-1 Ph-60 Hz

4 – 265V-1 Ph-60 Hz**

Heat Exchanger and Operating Range

C – Copper heat exchanger, standard range

(60 to 95 F)

E – Copper heat exchanger, extended range (20 to 110 F)

F – Cupronickel heat exchanger, extended range

(20 to 110 F)

N – Cupronickel heat exchanger, standard range

(60 to 95 F)

Cabinet, Subbase and Mute Package Options

Std Mute Cabinet Subbase

AT Bottom return 3 in. Subbase

BU Bottom return 3 in. Subbase with

Motorized Damper

Bottom return

5 in. Subbase with

Motorized Damper

DW Bottom return NO BASE

EY Bottom return 3 in. Subbase

Locking control door

FZ Bottom return 3 in. Subbase with

Locking control door Motorized Damper

G1 Bottom return 5 in. Subbase with

Locking control door Motorized Damper

H2 Bottom return NO BASE

Locking control door

J3 Front return NO BASE

K4 Front return NO BASE

Locking control door

L5 NO CABINET 3 in. Subbase

M6 NO CABINET 3 in. Subbase with

Motorized Damper

N7 NO CABINET 5 in. Subbase with

Motorized Damper

P8 NO CABINET NO BASE

Q9 NO CABINET 5 in. Subbase

R0 Bottom return 5 in. Subbase

SO Bottom return 5 in. Subbase

Locking control door

Water Supply Orientation

R – Right Hand

L – Left Hand

Water Circuit Options

Connection Type Valve Option

A – Sweat 2-Way Water Control Valve

B – Sweat Autoflow Regulator, 2.25 gpm/ton

C – Sweat Autoflow Regulator, 3.0 gpm/ton

D – Sweat 2-Way Water Control Valve with

Autoflow Regulator, 2.25 gpm/ton

E – Sweat 2-WayWater Control Valve with

Autoflow Regulator, 3.0 gpm/ton

F – FPT None

G – FPT 2-Way Water Control Valve

H – FPT Autoflow Regulator, 2.25 gpm/ton

J – FPT Autoflow Regulator, 3.0 gpm/ton

K – FPT 2-Way Water Control Valve with

Autoflow Regulator, 2.25 gpm/ton

L – FPT 2-Way Water Control Valve with

Autoflow Regulator, 3.0 gpm/ton

M – MPT None

N – MPT 2-Way Water Control Valve

P – MPT Autoflow Regulator, 2.25 gpm/ton

Q – MPT Autoflow Regulator, 3.0 gpm/ton

R – MPT 2-WayWater Control Valve with

Autoflow Regulator, 2.25 gpm/ton

S – Sweat None

T – MPT 2-Way Water Control Valve with

Autoflow Regulator, 3.0 gpm/ton

Right and left hand orientation is determined by looking at front of unit.

†

For these options, unit must be hard wired (digit 15 must be “A”).

Control Options

A – Manual Changeover with Complete C

B – Manual Changeover with Deluxe D

C – Auto Changeover with Complete C

D – Auto Changeover with Deluxe D

P – PremierLink™ DDC Control†

R – Remote Thermostat with Complete C

S – Remote Thermostat with Deluxe D

*Right and left hand orientation is determined by looking at front of unit.

†Available with Complete C only.

**20A plug and cord not available for 265V units.

††Sizes 07,09,12 only.

LEGEND NOTES:

1. Ratings are in accordance with and certified to ARI/ISO Standard

13256-1.

2. Cooling Standard: 80.6 F db, 66 F wb indoor entering air tempera-

ture, 86 F entering water temperature.

3. Heating Standard: 68 F db indoor entering air temperature, and

68 F entering water temperature.

Physical data

UNIT 50KQL

COOLING HEATING

AIRFLOW

(cfm)

WATER

FLOW

(gpm)

PRESSURE

DROP

(ft wg)

TC SC THR

Input Power

(kW)

EER TC

Input Power

(kW)

COP

07 7.8 6.6 10.0 0.645 12.1 10.4 0.622 4.9 240 1.9 1.5

09 9.3 7.2 11.9 0.775 12.0 12.0 0.799 4.4 300 2.5 3.1

12 12.3 9.5 15.9 1.060 11.6 15.0 0.999 4.4 350 3.1 3.8

15 13.8 11.2 17.8 1.169 11.8 17.3 1.152 4.4 400 3.6 3.0

19 16.0 11.9 20.6 1.333 12.0 19.3 1.346 4.2 460 4.8 5.0

ARI — Air Conditioning and Refrigeration Institute

COP — Coefficient of Performance

db — Dry Bulb Temperature

EER — Energy Efficiency Ratio

ISO — International Organization for Standardization

TC — Total Capacity (MBtuh)

THR — Total Heat of Rejection (MBtuh)

SC — Sensible Capacity (MBtuh)

wb — Wet Bulb Temperature

BASE UNIT 50KQL 07 09 12 15 19

NOMINAL COOLING CAPACITY (Btuh)

7,800 9,300 12,300 13,800 16,000

COMPRESSOR

Rotary

BLOWER

Motor Horsepower

Wheel Size D x W (in.) 2 each

FILTER SIZE (in.) Bottom Return

8x29

FILTER SIZE (in.) Front Return

7x29

UNITWEIGHT(lb)

Shipping

Operating

181

173

185

177

195

187

201

193

206

198

REF. TO AIR HEAT EXCHANGER

Face Area (sq ft)

No. of Rows Deep

Copper Tube Size OD (in.)

Fin Spacing (FPI)

1.4

1.8

REFRIG. CHARGE (R-22)/CKT (oz)

No. of Circuits

UNIT CABINET WITH STANDARD SUBBASE

WxHxD(in.) 48 x 24 x 12 48 x 24 x 12 48 x 24 x 12 48 x 24 x 12 48 x 24 x 12

WATER IN/OUT SIZE OD SWEAT (in.)

CONDENSATE SIZE ID VINYL (in.)

ARI/ISO 13256-1 capacity ratings

Factory-installed options

Cupronickel heat exchangers are available for higher

corrosion protection for applications such as open tower,

geothermal, etc. Consult the water quality guidelines for

proper application and selection of this option.

Thermostat options include a unit mounted Manual

Changeover (MCO) or Auto Changeover (ACO) thermo-

stat. The temperature set point knob and push button

switches for fan speed and cool/heat mode (MCO) selec-

tion are conveniently located on the top. The thermostat

senses the return-air temperature. The thermostat sends

the appropriate signal to the controller for cooling or heat-

ing mode of operation.

Options R and S allow connection to a remote wall-

mounted thermostat. The Complete C controller requires a

heat pump thermostat. The Deluxe D controller can be

configured for heat pump or heat/cool thermostat.

Extended range is provided to insulate the coaxial coil to

prevent condensation, and therefore potential dripping

problems, in applications where the entering water

temperature is below the normal operating range (less than

60 F).

Cabinet options include a locking control panel for

added security. Bottom or front return with left or right

hand configurations are available for ease of installation.

Available with 3 or 5 in. subbase, with or without motor-

ized damper.

Motorized fresh air damper with the unit-mounted

thermostat. Opens when LOW or HIGH fan speed selec-

tions are made from the push button switches. When

STOP or FAN ONLY selections are made the spring return

on the damper motor closes the damper. With remote

thermostat the motorized fresh air damper opens when the

fan is running.

Piping connections can be provided on either the right

or left hand side of the unit, for easy installation. Orienta-

tion is determined by facing the unit from the front side.

Automatic flow regulators include internally mounted

2.25 or 3.0 gpm/ton automatic flow regulating valves for

easier install

ation.

Two-way motorized control valve can be provided with

a copper or cupronickel heat exchanger for applications

involving open type systems or variable speed pumping.

This valve will slowly open and close in conjunction with the

compressor operation to shut off or turn on water to the

unit. Standard two-way valve performance includes Cv of

2.9 and maximum operating pressure differential (MOPD)

of 125 psi.

Mute package includes high density noise suppression

material on front, right, and left sides of compressor

compartment and

-in. fiberglass insulation on all

insulated surfaces, for extra-quiet operation in the most

critical applications.

Deluxe D control system provides the same functions

as the Complete C while incorporating additional flexibility

and functions to include:

Thermostat input capabilities

— Accommodate emergency

shutdown mode and night setback with override (NSB)

potential. Night setback from low temperature thermostat

with 2-hour override is initiated by a momentary signal

from the thermostat.

Compressor relay staging

— Used with dual stage units

(units with 2 compressors and 2 Deluxe D controls) or in

master/slave applications.

Boilerless electric heat control system

— Allows automatic

changeover to electric heat at low loop water temperature.

Intelligent reversing valve operation

— Minimizes reversing

valve operation for extended life and quiet operation.

Thermostat type select (Y, O or Y, W)

— Provides ability to

work and select heat pump or heat/cool thermostats (Y, W).

Reversing valve signal select (O or B)

— Provides selection

for heat pump O/B thermostats.

Dehumidistat input

— Provides operation of fan control for

dehumidification operation.

Multiple units on one thermostat/wall sensor

— Provides

for communication for up to three heat pumps on one

thermostat.

Boilerless changeover temperature

— Provides selection of

boilerless changeover temperature set point.

Accessory relays

— Allow configuration for multiple appli-

cations including fan and compressor cycling, digital night

setback (NSB), mechanical night setback, water valve oper-

ation, and outside air damper operation.

Night low limit

— If the unit operation is turned OFF from

either the push button switches, remote thermostat or the

energy management system, it is possible that the space

temperature could drop uncontrollably. The Night Low

Limit feature, with Deluxe D controller, helps maintain the

space temperature at a level that is the best compromise

between energy consumption and a safe space tempera-

ture. A thermostat located near the return air filter

activates the blower and compressor operation when the

space temperature falls below 50 F. When return air tem-

perature is raised above 55 F the compressor and blower

stop.

Override function

— An Override function is available for

units operating in occupied/unoccupied mode under the

control of an external timeclock or an energy management

system. A contact closure from the timeclock or energy

management system shorts the NSB and C terminal on the

Deluxe D controller signaling an unoccupied mode.

For units with the unit-mounted thermostat, pressing

override switch (located under control access door) will

override the unoccupied mode and allow the occupied

mode of operation to continue for a period of two hours.

The units with the remote wall-mounted thermostat

require a digital thermostat with the override function. In

unoccupied mode an accessory relay is energized on the

Deluxe D controller. The NO/NC contacts of the relay can

be used as appropriate input to the digital thermostat to

signal occupied/unoccupied mode. The thermostat selects

cooling/heating set points based on occupied/unoccupied

mode.

PremierLink™ controller is compatible with the Carrier

Comfort Network (CCN) and other building automation

systems (BAS). This control is designed to allow users the

access and ability to change factory-defined settings thus

expanding the function of the standard unit.

Options and accessories

50KQL CONTROL OPTIONS TABLE

LEGEND

Field-installed accessories

Carrier’s line of Aquazone™ thermostats (used with

remote thermostat units) are both attractive and multi-

functional, accommodating stand-alone water source heat

pump installations.

Programmable 7-day thermostat

— Offers 2-stage heat,

2-stage cool, auto changeover, 7-day programmable with

copy command, 4 settings per day, fully electronic, 24 vac,

backlit LCD, keypad lockout, no batteries required,

5-minute compressor protection, NEVERLOST™ memory,

3 security levels, temperature display in degrees F or C.

Programmable 7-day light-activated thermostat

— Offers

same features as the 7-day programmable thermostat and

includes occupied comfort settings with lights on, unoccu-

pied energy savings with lights off.

Programmable 7-day flush-mount thermostat

— Offers

same features as the 7-day programmable thermostat and

includes locking coverplate with tamper proof screws, flush

to wall mount, holiday/vacation programming, set point

limiting, dual point with adjustable deadband, O or B termi-

nal, and optional wall or duct-mounted remote sensor.

Programmable 5-day thermostat

— Offers 2-stage heat,

2-stage cool, auto changeover, 5-minute built-in compres-

sor protection, locking cover included, temperature display

in degrees F or C, keypad lockout, backlit display, 5-1-1

programming, O or B terminal, dual set point with adjust-

able deadband, configurable display, self-prompting pro-

gram, 4 settings per day.

Non-programmable thermostat

— Offers 2 heat stages,

2 cool stages, auto changeover, 5-minute built in compressor

protection, locking cover included, temperature display in

degrees F or C, keypad lockout, large display, back-lit dis-

play, O or B terminal, dual set point with adjustable dead-

band, backplate with terminals.

Aquazone system control panel includes a pre-

programmed, easy to use, Carrier Comfort Controller set

up for a WSHP system.

• Coordinates, monitors, and controls all WSHP units

and ancillary equipment including cooling towers, boil-

ers, and system pumps.

• 50RLP model nomenclature is used to customize the

panel to control all WSHP system requirements.

• Panel can be ordered to include 2, 4, 6, or 8 stages of

system heat rejection.

• Panel can be ordered to include 2, 4, 6, or 8 stages of

system heat addition.

• Panel can be ordered with unique WSHP zone operation

capabilities for stand alone systems (i.e., non-communicating)

to control 10 or 18 zones of WSHP units.

• Panel can be ordered to control variable frequency cool-

ing tower fan operation.

• System pumping operation can be configured for start/

stop, lead/lag, or variable frequency pump operation.

• Direct Digital Control compatible using the Carrier

Comfort Network (CCN) and WSHP units utilizing

PremierLink CCN controllers.

Fire-rated hoses are 2 ft long and have a fixed MPT on

one end and a swivel with an adapter on the other end.

Hose kits are provided with both a supply and return hose

and can be either stainless steel or galvanized. Five sizes

are available (

, 1, 1

, 1

in.).

Ball valves (brass body) used for shutoff and balancing

water flow. Available with memory, memory stop, and

pressure temperature ports. UL-listed brass body, ball and

stem type with Teflon seats and seals. Five sizes are avail-

able (

, 1, 1

, 1

in.).

Y strainers (bronze body) are “Y” type strainers with a

brass cap. Maximum operating pressure rating of

450 psi. Strainer screen made of stainless steel. Available

with blow down valves. Five sizes are available (

, 1,

, 1

in.).

Solenoid valves (brass body) offer 3.5 watt coil,

24 volt, 50/60 Hz, 740 amps inrush, .312 amps holding.

Slow operation for quiet system application. Five sizes are

available (

, 1, 1

, 1

in.).

Hose kit assemblies provide all the necessary compo-

nents to hook up a water-side system. Supply hose

includes a ported ball valve with pressure temperature

(P/T) plug ports, flexible stainless steel hose with swivel

and nipple. Return hose includes a ball valve, preset auto-

matic balancing valve (gpm) with two P/T ports, flexible

stainless steel hose with a swivel and nipple, balancing

valve, and low-pressure drop water control valve.

Remote sensors are available for Aquazone flush mount

thermostats. Sensors are available for wall (wired and wire-

less) or duct mounted applications.

PremierLink™ accessories are available to provide a

fully integrated WSHP DDC system. Accessories include

supply air temperature sensors (with override and/or set-

point adjustment), communicating room sensors, CO

sen-

sors (for use in demand control ventilation), and linkage

thermostats (to control multiple units from one thermostat).

OPTION CONTROLLER THERMOSTAT FUNCTIONS TRANSFORMER

A Complete C MCO — 50 VA

B Deluxe D MCO NIGHT LOW LIMIT 2-HR OVERRIDE 75 VA

C Complete C ACO — 50 VA

D Deluxe D ACO NIGHT LOW LIMIT 2-HR OVERRIDE 75 VA

P Complete C with PremierLink™ LINKAGE DDC SYSTEM 50 VA

R Complete C REMOTE — 50 VA

S Deluxe D REMOTE

NIGHT LOW LIMIT2-HR

OVERRIDE

75 VA

ACO — Auto Changeover

DDC — Direct Digital Controls

MCO — Manual Changeover

Options and accessories (cont)

COOL

HEAT

AUTO

5-DAY PROGRAMMABLE/NON-PROGRAMMABLE

AUTO

COOL

HEAT

Carrier

CARRIER AQUAZONE™ THERMOSTATS

(FOR USE WITH REMOTE THERMOSTAT UNITS)

7-DAY PROGRAMMABLE/LIGHT-ACTIVATED

PROGRAMMABLE

7-DAY PROGRAMMABLE FLUSH MOUNT

PREMIERLINK™ COMMUNICATING CONTROL

Dimensions

50KQL BOTTOM RETURN CABINET DIMENSIONS — RIGHT HAND PIPING

Notes:

1. Dimensions shown are in inches. Dimensions in parentheses are in millimeters.

Shown is 76mm subbase. Add 50.8mm to dimension shown for 127mm subbase.

11.5

(292)

*2.9

(74)

3.5

(88.9)

(607)

DAMPER OPENING*

(1219)

1.63

(41)

11.75

(298)

9.81

(249)

0.59

(15)

(533)

*2.9

(74)

REAR VIEW

Air

Inlet

Discharge

Air

1.56

(40)

3.5

(89)

0.75

(19)

R.H. Pipe &

Electric Area

1 (25)

4.5

(114)

(508)

(305)

(254)

BOTTOM VIEW

(127)

(406)

FRONT VIEW

Control Access Door

AIR INLET AREA

48.0

(1219)

(851)

1.75

(44.5)

(1219)

1.9

(48)

SIDE

VIEW

REAR

ACCESS

Filter located inside and at

top of air inlet area. Push

tabs back and down to release

filter for replacement.

33.5

*23.9

12.0

48.0

10.0

*Dimension shown is with 3 in. subbase. Add 2 in. to dimension shown for 5 in. subbase.

NOTES:

1. Dimensions are shown in inches. Dimensions in parentheses are in millimeters.

2. Optional autoflow valve, motorized water valve and disconnect box are shown.

Dimensions (cont)

50KQL BOTTOM RETURN CABINET DIMENSIONS — LEFT HAND PIPING

11.5

(292)

*2.9

(74)

3.5

(88.9)

(607)

DAMPER OPENING*

48.0

(1219)

1.63

(41)

11.75

(298)

9.9

(251)

0.59

(15)

21.0

(533)

*2.9

(74)

REAR VIEW

Air

Inlet

Discharge

Air

(305)

BOTTOM VIEW

12.6

(320)

FRONT VIEW

Control Access Door

AIR INLET AREA

(1219)

1.75

(44.5)

(1219)

1.5

(38)

1.9

(48)

1.56

(40)

3.5

(89)

0.75

(19)

L.H. Pipe &

Electric Area

10.0

(254)

REAR

ACCESS

1 (25)

4.5

(114)

20.0

(508)

SIDE

VIEW

Filter located inside and at top of air

inlet area. Push tabs back and down

to release filter for replacement.

33.5

(851)

48.0

12.0

*23.9

30°

Notes:

1. Dimensions shown are in inches. Dimensions in parentheses are in millimeters.

Shown 76mm subbase. Add 50.8mm to dimension shown for 127mm subbase.

2. Optional autoflow valve, motorized water valve and disconnect box are shown.

*Dimension shown is with 3 in. subbase. Add 2 in. to dimension shown for 5 in. subbase.

NOTES:

1. Dimensions are shown in inches. Dimensions in parentheses are in millimeters.

2. Optional autoflow valve, motorized water valve and disconnect box are shown.

50KQL FRONT RETURN CABINET DIMENSIONS — RIGHT HAND PIPING

Notes:

All

dimensions are shown in inches. Dimensions in parentheses are in millimeters.

2. Optional autoflow valve, motorized water valve and disconnect box are shown.

3.5

(88.9)

(533)

21.0

(533)

REAR VIEW

Discharge

Air

REAR

ACCESS

1 (25)

4.5

(114)

(508)

(305)

(127)

(406)

FRONT VIEW

Control Access Door

(1219)

(1110)

7.9

(201)

(533)

R.H. Pipe &

Electric Area

(1219)

(305)

BOTTOM VIEW

48.0

(1219)

SIDE

VIEW

Air

Inlet

Filter located behind return

air grille and requires removal of

cabinet front for access.

21.0

48.0

43.7

12.0

30°

21.0

48.0

12.0

20.0

NOTES:

1. All dimensions are shown in inches. Dimensions in parentheses are in millimeters.

2. Optional autoflow valve, motorized water valve and disconnect box are shown.

Dimensions (cont)

50KQL FRONT RETURN CABINET DIMENSIONS — LEFT HAND PIPING

Notes:

All

dimensions are shown in inches. Dimensions in parentheses are in millimeters.

2. Optional autoflow valve, motorized water valve and disconnect box are shown.

30°

3.5

(88.9)

(533)

21.0

(533)

REAR VIEW

Discharge

Air

REAR

ACCESS

(114)

(305)

1.5

(38.1)

12.6

(320)

FRONT VIEW

Control Access Door

(1219)

(1110)

7.9

(201)

12.0

(305)

BOTTOM VIEW

48.0

(1219)

4.5

1 (25)

1 ( 25)

(508)

L.H. Pipe &

Electric Area

SIDE

VIEW

Air

Inlet

Filter located behind return

air grille and requires removal of

cabinet front for access.

20.0

(1219)

48.0

(533)

21.0

48.0

43.7

21.0

12.0

NOTES:

1. All dimensions are shown in inches. Dimensions in parentheses are in millimeters.

2. Optional autoflow valve, motorized water valve and disconnect box are shown.

50KQL CHASSIS DIMENSIONS — SIZE 07, 09, 12, 15, 19

Notes:

* For installed dimension, add to dimension shown 74mm with 76mm subbase and

124mm for 127mm subbase.

1. Dimensions shown are in inches. Dimensions in parentheses are in millimeters.

2. Optional autoflow valve, motorized water valve and disconnect box are shown.

3. Water connection in same location regardless of connection type.

(293)

Optional Disconnect Box

(mounted to cabinet not chassis)

Optional

Motorized

Water Valve

Optional

Autoflow

Valve

Water Connections

5/8” (15.9 mm)

OD Copper,

1/2” FPT or

1/2” MPT

Power Supply

Water Out

Water In

Blower Deck

Blower Access Panel

Compressor

Access

Panel

Control Box

3.50

(89)

1.93

(49)

40.98

(1041)

4.49

(114)

0.75

(19)

20.44

(52)

3.88

(99)

11.5

3.22

(82)

*1.94

(49)

*16.66

(423)

*7.06

(179)

30°

0.87

(22)

3.01

(76)

5.36

(136)

Condensate

5/8” (15.9 mm)

ID Vinyl Hose

7.5

(191)

3.42

(87)

3.56

(90)

0.75

(19)

Optional Disconnect Box

(mounted to cabinet not chassis)

Optional

Motorized

Water Valve

Optional

Autoflow

Valve

Water Connections

5/8” (15.9 mm)

OD Copper,

1/2” FPT or

1/2” MPT

ID Vinyl Hose

Power Supply

Water Out

Water In

Blower Deck

Blower Access Panel

Compressor

Access

Panel

Control Box

7.5

(191)

0.87

(22)

0.99

(25)

3.88

(99)

11.5

(293)

3.43

(87)

*1.94

(49)

*7.06

(179)

*16.66

(423)

3.01

(76)

5.36

(136)

0.75

(19)

4.46

(113)

20.50

(521)

3.28

(83)

40.98

(1040)

Condensate

5/8” (15.9 mm)

3.56

(90)

1.84

(47)

0.75

*For installed dimension, add to dimension shown 2.9 in. with 3 in. subbase and 4.9 in. for 5 in.

subbase.

NOTES:

1. Dimensions shown are in inches. Dimensions in parentheses are in millimeters.

2. Optional autoflow valve, motorized water valve and disconnect box are shown.

3. Water connection in same location regardless of connection type.

RIGHT HAND CONFIGURATION

LEFT HAND CONFIGURATION

I Determine the actual cooling and heating

loads at the desired dry bulb and wet bulb

conditions.

Assume cooling load at desired dry bulb 80 F and

wet bulb 66 F conditions are as follows:

Given:

Total Cooling (TC). . . . . . . . . . . . . . .11,750 Btuh

Sensible Cooling (SC) . . . . . . . . . . . . .8,650 Btuh

Entering-Air Temperature db . . . . . . . . . . . . 80 F

Entering-Air Temperature wb . . . . . . . . . . . . .66 F

II Determine the following design parameters.

Determine entering water temperature, water flow

rate (gpm), airflow (cfm), water flow pressure drop

and design wet and dry bulb temperatures. Airflow

cfm should be between 300 and 450 cfm per ton.

For applications using multiple units, the water pres-

sure drop should be kept as close as possible across

units to make water balancing easier. Enter the

50KQL12 Performance Data tables and find the

proper indicated water flow and water temperature.

For example:

Entering Water Temp . . . . . . . . . . . . . . . . . 90 F

Water Flow (Based upon

10 F rise in temp) . . . . . . . . . . . . . . . . . . 3.1 gpm

Airflow Cfm . . . . . . . . . . . . . . . . . . . . . . 308 cfm

III Select a unit based on total cooling and total

sensible cooling conditions. Unit selected

should be closest to but not larger than the

actual cooling load.

Enter tables at the design water flow and water

temperature. Read the total and sensible cooling

capacities.

NOTE: Interpolation is permissible, extrapolation is

not.

For example:

Enter the 50KQL12 Performance Table at design

water flow and water temperature. Read Total

Cooling, Sensible Cooling and Heat of Rejection

capacities:

Total Cooling . . . . . . . . . . . . . . . . . .12,200 Btuh

Sensible Cooling . . . . . . . . . . . . . . . . 8,900 Btuh

Heat of Rejection . . . . . . . . . . . . . . .15,900 Btuh

NOTE: It is quite normal for water source heat

pumps to be selected on cooling capacity only since

the heating output is usually greater than the cooling

capacity. Heating capacity is selected based on

different entering water conditions than cooling

capacity.

IV Determine the correction factors associated

with the variable factors of dry bulb and wet

bulb using the Corrections Factor tables

found in this book.

Using the following formulas to determine the cor-

rection factors of dry bulb and wet bulb:

a) Corrected Total Cooling = tabulated total cooling

x wet bulb correction x airflow correction.

b) Corrected Sensible Cooling = tabulated sensible

cooling x wet/dry bulb correction x airflow

correction

V Determine entering air and airflow correction

using the Corrections Factor tables found in

this book.

The nominal airflow for 50KQL12 is 350 cfm. The

design parameter is 325 cfm.

308/350 = 88% of nominal airflow

Use the 88% row in the Nominal Cfm Correction

table.

The Entering Air Temperature wb is 66 F. Use the

66.2 F row in the Entering Air Correction table.

Using the following formulas to determine the cor-

rection factors of entering air and airflow correction:

Compare the corrected capacities to the load

requirements established in Step I. If the capacities

are within 10% of the load requirements, the equip-

ment is acceptable. It is better to undersize than

oversize as undersizing improves humidity control,

reduces sound levels and extends the life of the

equipment.

VI Water temperature rise calculation and

assessment.

Calculate the water temperature rise and assess the

selection using the following calculation:

For example, using the Corrected Heat of Rejection

from the last step:

If the units selected are not within 10% of the load

calculations, review what effect changing the gpm,

water temperature and/or airflow will have on the

corrected capacities. If the desired capacity cannot

be achieved, select the next larger or smaller unit

and repeat Steps I through VI.

Table Ent Air Airflow Corrected

Corrected

Total Cooling = 12,200 x 0.983 x 0.979 = 11,741

Corrected

Sensible Cooling = 89,900 x 1.036 x 0.936 = 8,630

Corrected

Heat of Rejection = 15,900 x 0.985 x 0.979 = 15,333

Actual Temperature

Rise

Correction of Heat Rejection

gpm x 500

Actual Temperature

Rise

15,333

=9.9 F

3.1 x 500

Selection procedure (with 50KQL12 example)

VII ARI/ISO 13256-1 Conversion

Performance standard ARI/ISO 13256-1 became

effective on January 1, 2000 and replaced the exist-

ing ARI Standards 320 Water-Loop Heat Pumps

(WLHP), 325 Ground-Water Heat Pumps (GWHP),

and 330 Ground-Loop Heat Pumps (GLHP).

The ARI/ISO Standard incorporates a consistent

rating methodology for including fan and pump

energy for calculating cooling capacity, heating

capacity, and energy efficiency ratios (EER). This

simplifies the use of rating data for heat pump per-

formance modeling in seasonal energy analysis cal-

culations, and allows for direct rating comparisons

across applications.

a) ISO Capacity and Efficiency Equations

The following equations are used to calculate and

correct cooling capacity, heating capacity, and

respective EER:

ISO Cooling Capacity = (Cooling Capacity in

Btuh) + (Fan Power Correction in Watts x 3.412)

ISO Cooling EER = (ISO Cooling Capacity in

Btuh/3.412)/(Power Input in watts – fan power

correction in watts + pump power correction in

watts) = Watts/Watts

NOTE: Do not divide ISO Cooling Capacity by

3.412 to obtain Btuh/Watts.

ISO Heating Capacity = (Heating Capacity in

Btuh) – (Fan Power Correction in Watts x 3.412)

ISO Heating EER = (ISO Heating Capacity in

Btuh/3.412)/(Power Input in watts – fan power

correction in watts + pump power correction in

watts) = Watts/Watts

NOTE: Do not divide ISO Heating Capacity by

3.412 to obtain Btuh/Watts.

b) Identify the design conditions corrected for air and

water conditions.

Airflow Cfm = 308 Cfm

Water Flow

(Based upon 10 F rise in temp) = 3.1 GPM

External Static Pressure = 0.0 in. wg (non-ducted

application)

Water Pressure Drop = 3.7 ft of head

Power input = 1,067 watts

Cooling Capacity = 11,741 Btuh

c) Perform Fan Power Correction Adjustment

Use the following formula to calculate Fan Power

Correction:

Fan Power

Correction = (Cfm x 0.472) x (External Static

Pressure x 249)/300 = Watts

= (308 x 0.472) x (0 x 249)/300

= 0 Watts

d) Perform Pump Power Correction Adjustment

Use the following formula to calculate Pump

Power Correction:

Pump Power

Correction = (GPM x 0.0631) x (Pressure Drop

x 2,990)/300

= Watts

= (3.1 x 0.0631) x

(3.7 x 2,990)/300

= 7.2 Watts

e) Perform capacity and EER calculations

Use the following formula to calculate capacity

and EER:

ISO Cooling

Capacity = (Cooling Capacity) + (Fan Power

Correction x 3.412)

= 11,741 + (0 x 3.412)

= 11,741 Btuh

f) Perform Corrections by using the ISO Equations

ISO EER = (ISO Cooling Capacity/3.412)/

(Power Input – Fan Power Correc-

tion + Pump Power Correction)

= Watts/Watts

NOTE: Do not divide ISO Cooling Capacity by

3.412 to obtain Btuh/Watts.

= (11,741/3.412)/(1,067 – 0 + 7.2)

= 3.20 Watts/Watt

= 10.93 Btuh/Watt

50KQL07 — NOMINAL AIRFLOW 240 CFM

LEGEND

*ARI 320 points (bold printing) are shown for comparison purposes

only. These are not certified data points.

NOTES:

1. MOPD = Maximum Operating Pressure Differential (water pres-

sure differential at unit cannot exceed MOPD or water valve can-

not close)

2. Interpolation is permissible, extrapolation is not.

3. All entering air conditions are 80 F db and 67 F wb in cooling and

70 F db in heating.

4. All performance data is based upon the lower voltage of dual volt-

age rated units. See Performance Correction Tables on page 21

for operating conditions other than those listed above.

5. ARI/ISO 13256-1 (WLHP application) certified conditions are 86 F

EWT, 80.6 db and 66.2 F wb in cooling and 68 F EWT, 68 F db and

59 F wb in heating.

EWT

(F)

GPM

WATER PRESSURE DROP (ft wg) COOLING — EAT 80FDB/67FWB HEATING—EAT70F

Without Motorized

Valve

With Cv = 2.9

MOPD = 125 psi

TC SC SHR

Input

Power

THR TC

Input

Power

THA

1.0 1.6 1.8

Operation not recommended

1.4 2.5 2.7

1.9 3.7 4.2 5.5 0.50 3.8

1.0 1.4 1.6 9.7 6.9 0.71 0.36 10.9 6.0 0.51 4.3

1.4 2.2 2.4 9.8 6.9 0.70 0.33 10.9 6.3 0.52 4.5

1.9 3.3 3.7 9.9 6.9 0.70 0.31 10.9 6.4 0.52 4.7

1.0 0.9 1.0 9.4 6.8 0.72 0.41 10.8 6.9 0.53 5.1

1.4 1.4 1.7 9.6 6.9 0.71 0.37 10.9 7.2 0.54 5.4

1.9 2.1 2.5 9.7 6.9 0.71 0.36 10.9 7.4 0.55 5.6

1.0 0.9 1.0 9.0 6.7 0.74 0.46 10.6 7.8 0.56 5.9

1.4 1.4 1.6 9.3 6.8 0.73 0.42 10.8 8.2 0.57 6.3

1.9 2.0 2.5 9.5 6.8 0.72 0.40 10.8 8.4 0.57 6.5

1.0 0.8 0.9 8.6 6.5 0.76 0.52 10.4 8.7 0.58 6.7

1.4 1.3 1.5 8.9 6.6 0.74 0.48 10.5 9.2 0.59 7.2

1.9 1.9 2.4 9.1 6.7 0.74 0.46 10.6 9.4 0.60 7.4

70*

1.0 0.7 0.9 8.1 6.3 0.78 0.58 10.1 9.6 0.61 7.6

1.4 1.2 1.4 8.5 6.5 0.76 0.53 10.3 10.2 0.62 8.1

1.9 1.8 2.2 8.6 6.5 0.76 0.51 10.4 10.5 0.63 8.3

1.0 0.7 0.8 7.6 6.1 0.79 0.65 9.8 10.6 0.63 8.4

1.4 1.1 1.3 8.0 6.2 0.78 0.60 10.0 11.1 0.64 9.0

1.9 1.6 2.0 8.1 6.3 0.78 0.57 10.1 11.5 0.65 9.3

85*

1.0 0.6 0.7 7.4 5.9 0.80 0.68 9.7 11.0 0.64 8.9

1.4 1.0 1.3 7.7 6.1 0.79 0.63 9.9 11.6 0.65 9.4

1.9 1.5 1.9 7.9 6.2 0.78 0.61 10.0 12.0 0.66 9.7

1.0 0.6 0.7 7.2 5.8 0.81 0.72 9.6 11.5 0.65 9.3

1.4 1.0 1.2 7.5 6.0 0.80 0.67 9.8 12.1 0.66 9.9

1.9 1.4 1.9 7.6 6.1 0.79 0.64 9.8 12.5 0.67 10.2

100

1.0 0.6 0.7 6.7 5.5 0.81 0.81 9.5

Operation Not Recommended

1.4 0.9 1.1 7.0 5.7 0.81 0.75 9.6

1.9 1.3 1.7 7.2 5.8 0.81 0.72 9.6

110

1.0 0.5 0.7 6.4 5.2 0.81 0.91 9.5

1.4 0.9 1.1 6.6 5.4 0.81 0.84 9.5

1.9 1.3 1.7 6.7 5.5 0.81 0.81 9.5

DB — Dry Bulb

EAT — Entering Air Temperature (F)

EWT — Entering Water Temperature (F)

GPM — Gallons per Minute

MBtuh — Btuh in Thousands

SC — Sensible Capacity (MBtuh)

SHR — Sensible Heat Ratio

TC — Total Capacity

THA — Total Heat of Absorption (MBtuh)

THR — Total Heat of Rejection (MBtuh)

WB — Wet Bulb

WLHP — Water Loop Heat Pump

Performance data

50KQL09 — NOMINAL AIRFLOW 300 CFM

LEGEND

*ARI 320 points (bold printing) are shown for comparison purposes

only. These are not certified data points.

NOTES:

1. MOPD = Maximum Operating Pressure Differential (water pres-

sure differential at unit cannot exceed MOPD or water valve can-

not close)

2. Interpolation is permissible, extrapolation is not.

3. All entering air conditions are 80 F db and 67 F wb in cooling and

70 F db in heating.

4. All performance data is based upon the lower voltage of dual volt-

age rated units. See Performance Correction Tables on page 21

for operating conditions other than those listed above.

5. ARI/ISO 13256-1 (WLHP application) certified conditions are 86 F

EWT, 80.6 db and 66.2 F wb in cooling and 68 F EWT, 68 F db and

59 F wb in heating.

EWT

(F)

GPM

WATER PRESSURE DROP (ft wg) COOLING — EAT 80FDB/67FWB HEATING—EAT70F

Without Motorized

Valve

With Cv = 2.9

MOPD = 125 psi

TC SC SHR

Input

Power

THR TC

Input

Power

THA

1.3 2.2 2.4

Operation not recommended

1.9 3.9 4.4

2.5 6.2 7.0 7.2 0.63 5.1

1.3 1.8 2.0 11.3 7.6 0.67 0.48 13.0 7.5 0.66 5.2

1.9 3.2 3.6 11.7 7.7 0.66 0.44 13.2 7.6 0.67 5.4

2.5 5.0 5.8 11.9 7.8 0.66 0.42 13.3 7.7 0.67 5.4

1.3 1.3 1.5 10.9 7.4 0.68 0.54 12.8 8.1 0.69 5.8

1.9 2.6 3.0 11.2 7.5 0.67 0.49 12.9 8.4 0.70 6.0

2.5 4.0 4.7 11.3 7.6 0.67 0.47 13.0 8.6 0.71 6.2

1.3 1.3 1.5 10.6 7.2 0.68 0.60 12.6 9.1 0.72 6.6

1.9 2.5 2.9 10.8 7.3 0.68 0.56 12.7 9.4 0.73 6.9

2.5 3.9 4.6 10.9 7.4 0.67 0.53 12.8 9.7 0.74 7.1

1.3 1.2 1.4 10.2 7.1 0.69 0.67 12.5 10.1 0.75 7.6

1.9 2.4 2.8 10.4 7.2 0.69 0.62 12.6 10.6 0.77 8.0

2.5 3.7 4.4 10.6 7.2 0.68 0.60 12.6 10.9 0.77 8.2

1.3 1.2 1.3 9.8 6.9 0.71 0.75 12.4 11.3 0.79 8.6

1.9 2.2 2.7 10.1 7.0 0.70 0.70 12.5 11.9 0.80 9.1

2.5 3.5 4.2 10.2 7.1 0.69 0.67 12.5 12.2 0.819.4

1.3 1.1 1.3 9.3 6.8 0.73 0.83 12.1 12.5 0.82 9.7

1.9 2.1 2.5 9.6 6.9 0.71 0.78 12.3 13.1 0.83 10.3

2.5 3.2 4.0 9.8 6.9 0.71 0.75 12.4 13.5 0.84 10.6

1.3 1.1 1.2 9.0 6.7 0.74 0.87 12.0 13.1 0.83 10.2

1.9 2.0 2.4 9.4 6.8 0.72 0.82 12.2 13.7 0.85 10.8

2.5 3.1 3.9 9.6 6.9 0.72 0.79 12.3 14.1 0.86 11.2

1.3 1.0 1.2 8.7 6.5 0.75 0.92 11.8 13.7 0.85 10.8

1.9 2.0 2.4 9.1 6.7 0.74 0.86 12.0 14.3 0.87 11.4

2.5 3.0 3.8 9.3 6.8 0.73 0.83 12.1 14.7 0.88 11.7

100

1.3 1.0 1.2 7.9 6.2 0.79 1.01 11.3

Operation Not Recommended

1.9 1.9 2.3 8.4 6.4 0.77 0.95 11.6

2.5 3.0 3.7 8.6 6.5 0.76 0.92 11.8

110

1.3 1.0 1.2 6.9 5.7 0.83 1.10 10.7

1.9 2.0 2.4 7.5 6.0 0.80 1.04 11.1

2.5 3.1 3.8 7.8 6.2 0.79 1.02 11.3

DB — Dry Bulb

EAT — Entering Air Temperature (F)

EWT — Entering Water Temperature (F)

GPM — Gallons per Minute

MBtuh — Btuh in Thousands

SC — Sensible Capacity (MBtuh)

SHR — Sensible Heat Ratio

TC — Total Capacity

THA — Total Heat of Absorption (MBtuh)

THR — Total Heat of Rejection (MBtuh)

WB — Wet Bulb

WLHP — Water Loop Heat Pump

50KQL12 — NOMINAL AIRFLOW 350 CFM

LEGEND

*ARI 320 points (bold printing) are shown for comparison purposes

only. These are not certified data points.

NOTES:

1. MOPD = Maximum Operating Pressure Differential (water pres-

sure differential at unit cannot exceed MOPD or water valve can-

not close)

2. Interpolation is permissible, extrapolation is not.

3. All entering air conditions are 80 F db and 67 F wb in cooling and

70 F db in heating.

4. All performance data is based upon the lower voltage of dual volt-

age rated units. See Performance Correction Tables on page 21

for operating conditions other than those listed above.

5. ARI/ISO 13256-1 (WLHP application) certified conditions are 86 F

EWT, 80.6 db and 66.2 F wb in cooling and 68 F EWT, 68 F db and

59 F wb in heating.

EWT

(F)

GPM

WATER PRESSURE DROP (ft wg) COOLING — EAT 80FDB/67FWB HEATING—EAT70F

Without Motorized

Valve

With Cv = 2.9

MOPD = 125 psi

TC SC SHR

Input

Power

THR TC

Input

Power

THA

1.6 2.1 6.5

Operation not recommended

2.3 3.8 11.4

3.1 6.1 19.6 8.7 0.78 6.0

1.6 1.8 6.5 14.8 9.8 0.66 0.60 16.8 9.4 0.81 6.6

2.3 3.3 11.4 14.9 9.9 0.66 0.55 16.8 9.7 0.83 6.9

3.1 5.3 19.6 15.0 9.9 0.66 0.53 16.8 9.9 0.83 7.1

1.6 1.6 6.5 14.4 9.6 0.67 0.68 16.7 10.6 0.86 7.7

2.3 3.1 11.4 14.7 9.7 0.66 0.62 16.8 11.0 0.87 8.0

3.1 4.8 19.6 14.8 9.8 0.66 0.59 16.8 11.2 0.88 8.3

1.6 1.6 6.5 14.0 9.5 0.68 0.76 16.6 11.8 0.89 8.8

2.3 2.9 11.4 14.3 9.6 0.67 0.70 16.7 12.3 0.91 9.2

3.1 4.5 19.6 14.5 9.6 0.67 0.67 16.7 12.6 0.92 9.5

1.6 1.5 6.5 13.5 9.3 0.69 0.86 16.4 13.1 0.93 9.9

2.3 2.7 11.4 13.8 9.4 0.68 0.79 16.5 13.6 0.94 10.4

3.1 4.3 19.6 14.0 9.5 0.68 0.76 16.6 13.9 0.95 10.7

1.6 1.4 6.5 12.9 9.1 0.71 0.97 16.2 14.3 0.96 11.0

2.3 2.6 11.4 13.3 9.2 0.69 0.90 16.3 14.9 0.97 11.6

3.1 4.1 19.6 13.5 9.3 0.69 0.86 16.4 15.2 0.98 11.9

1.6 1.3 6.5 12.2 8.9 0.73 1.10 15.9 15.5 0.98 12.1

2.3 2.5 11.4 12.7 9.0 0.71 1.01 16.1 16.0 0.99 12.7

3.1 3.9 19.6 12.9 9.1 0.71 0.97 16.2 16.3 1.00 12.9

1.6 1.3 6.5 11.8 8.8 0.74 1.16 15.8 16.0 0.99 12.6

2.3 2.4 11.4 12.3 8.9 0.72 1.07 16.0 16.6 1.00 13.2

3.1 3.8 19.6 12.6 9.0 0.72 1.03 16.1 16.9 1.01 13.4

1.6 1.3 6.5 11.5 8.6 0.75 1.23 15.7 16.5 1.00 13.1

2.3 2.3 11.4 12.0 8.8 0.73 1.14 15.8 17.1 1.01 13.6

3.1 3.7 19.6 12.2 8.9 0.73 1.09 15.9 17.3 1.01 13.9

100

1.6 1.2 6.5 10.7 8.4 0.78 1.37 15.4

Operation Not Recommended

2.3 2.2 11.4 11.2 8.6 0.76 1.27 15.6

3.1 3.4 19.6 11.5 8.6 0.75 1.23 15.7

110

1.6 1.1 6.5 9.9 8.1 0.82 1.52 15.1

2.3 2.0 11.4 10.4 8.3 0.79 1.42 15.3

3.1 3.2 19.6 10.7 8.4 0.78 1.37 15.4

DB — Dry Bulb

EAT — Entering Air Temperature (F)

EWT — Entering Water Temperature (F)

GPM — Gallons per Minute

MBtuh — Btuh in Thousands

SC — Sensible Capacity (MBtuh)

SHR — Sensible Heat Ratio

TC — Total Capacity

THA — Total Heat of Absorption (MBtuh)

THR — Total Heat of Rejection (MBtuh)

WB — Wet Bulb

WLHP — Water Loop Heat Pump

Performance data (cont)

50KQL15 — NOMINAL AIRFLOW 400 CFM

LEGEND

*ARI 320 points (bold printing) are shown for comparison purposes

only. These are not certified data points.

NOTES:

1. MOPD = Maximum Operating Pressure Differential (water pres-

sure differential at unit cannot exceed MOPD or water valve can-

not close)

2. Interpolation is permissible, extrapolation is not.

3. All entering air conditions are 80 F db and 67 F wb in cooling and

70 F db in heating.

4. All performance data is based upon the lower voltage of dual volt-

age rated units. See Performance Correction Tables on page 21

for operating conditions other than those listed above.

5. ARI/ISO 13256-1 (WLHP application) certified conditions are 86 F

EWT, 80.6 db and 66.2 F wb in cooling and 68 F EWT, 68 F db and

59 F wb in heating.

EWT

(F)

GPM

WATER PRESSURE DROP (ft wg) COOLING — EAT 80FDB/67FWB HEATING—EAT70F

Without Motorized

Valve

With Cv = 2.9

MOPD = 125 psi

TC SC SHR

Input

Power

THR TC

Input

Power

THA

1.8 1.4 1.8

Operation not recommended

2.7 3.0 3.9

3.6 4.9 6.5 9.9 0.93 6.7

1.8 1.2 1.6 16.5 11.2 0.67 0.68 18.8 10.4 0.95 7.2

2.7 2.6 3.4 16.6 11.1 0.67 0.62 18.7 10.7 0.96 7.4

3.6 4.2 5.7 16.6 11.0 0.67 0.60 18.6 10.9 0.97 7.6

1.8 1.3 1.6 16.3 11.1 0.68 0.76 18.9 11.6 0.99 8.2

2.7 2.3 3.1 16.5 11.2 0.68 0.70 18.9 12.1 1.00 8.7

3.6 3.6 5.1 16.5 11.2 0.67 0.67 18.8 12.3 1.01 8.9

1.8 1.2 1.6 15.8 11.0 0.70 0.85 18.7 13.1 1.03 9.6

2.7 2.2 3.1 16.2 11.1 0.69 0.78 18.8 13.7 1.05 10.1

3.6 3.5 5.0 16.3 11.1 0.68 0.75 18.9 14.0 1.05 10.4

1.8 1.2 1.6 15.2 10.8 0.71 0.94 18.4 14.7 1.07 11.1

2.7 2.1 3.0 15.6 10.9 0.70 0.87 18.6 15.4 1.09 11.7

3.6 3.4 4.9 15.8 11.0 0.69 0.84 18.7 15.8 1.09 12.1

1.8 1.1 1.5 14.3 10.5 0.73 1.04 17.9 16.4 1.10 12.6

2.7 2.0 2.9 14.9 10.7 0.72 0.97 18.2 17.2 1.12 13.4

3.6 3.2 4.8 15.2 10.8 0.71 0.94 18.4 17.6 1.13 13.8

1.8 1.1 1.5 13.4 10.2 0.76 1.16 17.3 18.0 1.13 14.1

2.7 2.0 2.8 14.0 10.4 0.74 1.08 17.7 18.8 1.15 14.9

3.6 3.1 4.6 14.3 10.5 0.73 1.05 17.9 19.3 1.15 15.3

1.8 1.1 1.5 12.9 10.0 0.78 1.21 17.0 18.8 1.14 14.8

2.7 1.9 2.8 13.5 10.3 0.76 1.14 17.4 19.6 1.15 15.6

3.6 3.0 4.6 13.9 10.4 0.75 1.10 17.6 20.0 1.16 16.0

1.8 1.0 1.4 12.3 9.9 0.80 1.27 16.7 19.5 1.15 15.5

2.7 1.9 2.7 13.0 10.1 0.78 1.20 17.1 20.2 1.16 16.3

3.6 3.0 4.5 13.4 10.2 0.76 1.16 17.3 20.6 1.16 16.6

100

1.8 1.0 1.4 11.1 9.4 0.85 1.40 15.9

Operation Not Recommended

2.7 1.8 2.7 11.9 9.7 0.82 1.32 16.4

3.6 2.9 4.4 12.2 9.8 0.80 1.28 16.6

110

1.8 1.0 1.4 9.8 8.9 0.91 1.53 15.0

2.7 1.8 2.7 10.6 9.2 0.87 1.45 15.5

3.6 2.9 4.4 11.0 9.4 0.85 1.41 15.8

DB — Dry Bulb

EAT — Entering Air Temperature (F)

EWT — Entering Water Temperature (F)

GPM — Gallons per Minute

MBtuh — Btuh in Thousands

SC — Sensible Capacity (MBtuh)

SHR — Sensible Heat Ratio

TC — Total Capacity

THA — Total Heat of Absorption (MBtuh)

THR — Total Heat of Rejection (MBtuh)

WB — Wet Bulb

WLHP — Water Loop Heat Pump

50KQL19 — NOMINAL AIRFLOW 460 CFM

LEGEND

*ARI 320 points (bold printing) are shown for comparison purposes

only. These are not certified data points.

NOTES:

1. MOPD = Maximum Operating Pressure Differential (water pres-

sure differential at unit cannot exceed MOPD or water valve can-

not close)

2. Interpolation is permissible, extrapolation is not.

3. All entering air conditions are 80 F db and 67 F wb in cooling and

70 F db in heating.

4. All performance data is based upon the lower voltage of dual volt-

age rated units. See Performance Correction Tables on page 21

for operating conditions other than those listed above.

5. ARI//ISO 13256-1 (WLHP application) certified conditions are 86 F

EWT, 80.6 db and 66.2 F wb in cooling and 68 F EWT, 68 F db and

59 F wb in heating.

EWT

(F)

GPM

WATER PRESSURE DROP (ft wg) COOLING — EAT 80FDB/67FWB HEATING—EAT70F

Without Motorized

Valve

With Cv = 2.9

MOPD = 125 psi

TC SC SHR

Input

Power

THR TC

Input

Power

THA

2.4 3.0 3.7

Operation not recommended

3.6 6.0 7.5

4.8 9.7 12.5 11.2 1.05 7.6

2.4 2.1 2.8 20.1 13.2 0.66 0.81 22.8 12.2 1.09 8.5

3.6 4.2 5.8 20.5 13.4 0.66 0.76 23.1 12.6 1.10 8.9

4.8 6.8 9.6 20.7 13.5 0.65 0.74 23.2 12.8 1.11 9.0

2.4 2.0 2.7 19.4 12.9 0.66 0.90 22.5 13.8 1.14 9.9

3.6 3.8 5.4 19.8 13.1 0.66 0.84 22.7 14.3 1.16 10.3

4.8 6.2 9.0 20.0 13.2 0.66 0.82 22.8 14.5 1.17 10.6

2.4 2.0 2.6 18.7 12.5 0.67 1.00 22.1 15.5 1.21 11.4

3.6 3.7 5.2 19.2 12.7 0.66 0.94 22.4 16.0 1.23 11.9

4.8 6.0 8.8 19.4 12.8 0.66 0.91 22.5 16.3 1.24 12.1

2.4 1.9 2.5 18.0 12.1 0.67 1.11 21.8 17.2 1.27 12.8

3.6 3.5 5.1 18.5 12.4 0.67 1.04 22.0 17.8 1.30 13.4

4.8 5.8 8.5 18.7 12.5 0.67 1.01 22.1 18.1 1.31 13.6

2.4 1.8 2.4 17.2 11.8 0.68 1.23 21.4 18.8 1.34 14.2

3.6 3.3 4.9 17.7 12.0 0.68 1.16 21.6 19.4 1.36 14.8

4.8 5.5 8.2 17.9 12.1 0.67 1.12 21.8 19.8 1.37 15.1

2.4 1.7 2.4 16.3 11.4 0.70 1.36 20.9 20.3 1.40 15.6

3.6 3.2 4.7 16.8 11.6 0.69 1.28 21.2 20.9 1.42 16.1

4.8 5.2 7.9 17.1 11.7 0.69 1.24 21.3 21.3 1.43 16.4

2.4 1.6 2.3 15.8 11.2 0.71 1.43 20.7 21.0 1.42 16.2

3.6 3.1 4.6 16.4 11.4 0.70 1.35 21.0 21.6 1.44 16.7

4.8 5.0 7.8 16.7 11.5 0.69 1.31 21.1 21.9 1.46 16.9

2.4 1.6 2.3 15.3 11.0 0.72 1.50 20.4 21.7 1.45 16.7

3.6 3.0 4.6 15.9 11.2 0.71 1.42 20.7 22.2 1.47 17.2

4.8 4.9 7.7 16.2 11.3 0.70 1.38 20.9 22.5 1.48 17.4

100

2.4 1.6 2.2 14.1 10.5 0.75 1.65 19.8

Operation Not Recommended

3.6 2.9 4.5 14.8 10.8 0.73 1.56 20.1

4.8 4.8 7.5 15.1 10.9 0.72 1.52 20.3

110

2.4 1.6 2.3 12.8 10.0 0.78 1.81 19.0

3.6 3.0 4.5 13.6 10.3 0.76 1.72 19.4

4.8 4.9 7.6 13.9 10.5 0.75 1.68 19.6

DB — Dry Bulb

EAT — Entering Air Temperature (F)

EWT — Entering Water Temperature (F)

GPM — Gallons per Minute

MBtuh — Btuh in Thousands

SC — Sensible Capacity (MBtuh)

SHR — Sensible Heat Ratio

TC — Total Capacity

THA — Total Heat of Absorption (MBtuh)

THR — Total Heat of Rejection (MBtuh)

WB — Wet Bulb

WLHP — Water Loop Heat Pump

Performance data (cont)

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Carrier 50KQL-1PD User manual

Brand: Carrier

Model: 50KQL-1PD

Category: Heat pumps

Type: User manual

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AQUAZONE RVR

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