Koldwave 5WK07 Operating instructions

IOM5WK-1

1

Koldwave 5WK Installation, Operation, & Maintenance Manual

Model No._______________________ Serial No._______________________________

ATTENTION: READ THIS MANUAL AND ALL LABELS ATTACHED TO THE UNIT

CAREFULY BEFORE ATTEMPTING TO INSTALL, OPERATE OR SERVICE

THESE UNITS. CHECK DATA PLATES FOR ELECTRICAL SPECIFICATIONS

AND MAKE CERTAIN THAT THESE AGREE WITH THOSE AT THE POINT OF

INSTALLATION. RECORD THE UNIT MODEL AND SERIAL NUMBER IN THE

SPACE PROVIDED. RETAIN THIS DOCUMENT FOR FUTURE REFERENCE.

IMPROPER INSTALLATION, ADJUSTMENT, ALTERATION, SERVICE OR

MAINTENANCE CAN CAUSE PROPERTY DAMAGE, INJURY OR DEATH. THIS

APPLIANCE MUST BE INSTALLED BY A LICENSED CONTRACTOR OR

QUALIFIED SERVICE PERSONNEL. READ THESE INSTALLATION, OPERATING

AND MAINTENANCE INSTRUCTIONS THOROUGHLY BEFORE INSTALLING OR

SERVICING THE UNIT.

WARNING: INSTALL, OPERATE AND MAINTAIN UNIT IN ACCORDANCE WITH

MANUFACTURER’S INSTRUCTIONS TO AVOID ANY DETERING FACTORS

THAT MAY CAUSE PERSONAL INJURY OR PROPERTY DAMAGE.

INSTALLER’S RESPONSIBILITY: THIS EQUIPMENT HAS BEEN RUN TESTED

AND INSPECTED THOROUGHLY. IT HAS BEEN SHIPPED FREE FROM

DEFECTS FROM OUR FACTORY. HOWEVER, DURING SHIPMENT AND

INSTALLATION, PROBLEMS SUCH AS LOOSE WIRES, LEAKS, OR LOOSE

FASTENERS MAY OCCUR. IT IS THE INSTALLER’S RESPONSIBILITY TO

INSPECT AND CORRECT ANY PROBLEMS THAT MAY BE FOUND.

IOM5WK-1

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Table of Contents:

GENERAL INFORMATION ...................................................................................................... 4

MODEL CONFIGURATION...................................................................................................... 5

INSTALLATION INSTRUCTIONS .......................................................................................... 6

ELECTRICAL REQUIREMENTS ....................................................................................................... 6

WATER FITTING LOCATION ......................................................................................................... 6

SPECIFICATION AND ELECTRIC DATA ............................................................................. 8

SERVICEABILITY ...................................................................................................................... 9

5WK07 UNIT CONSTRUCTION BACK VIEW ................................................................................. 9

5WK07 UNIT CONSTRUCTION SIDE VIEW ................................................................................. 10

5WK14 UNIT CONSTRUCTION FRONT VIEW .............................................................................. 11

5WK14 HEAT PUMP UNIT CONSTRUCTION FRONT VIEW .......................................................... 12

5WK14 HEAT PUMP UNIT CONSTRUCTION BACK VIEW ............................................................ 13

5WK18 UNIT CONSTRUCTION BACK VIEW ............................................................................... 14

5WK18 UNIT CONSTRUCTION SIDE VIEW ................................................................................. 15

5WK23/26 UNIT CONSTRUCTION BACK VIEW .......................................................................... 16

5WK23/26 UNIT CONSTRUCTION LEFT VIEW ........................................................................... 17

5WK36 UNIT CONSTRUCTION BACK VIEW ............................................................................... 18

5WK36 UNIT CONSTRUCTION LEFT VIEW ................................................................................. 19

UNIT OPERATION ................................................................................................................... 20

UNIT POWER ON: ....................................................................................................................... 20

FAN HI: ...................................................................................................................................... 20

FAN LO: ..................................................................................................................................... 20

COOLING HI: .............................................................................................................................. 20

COOLING LO: ............................................................................................................................. 20

HEATING HI (HEAT PUMP UNIT): ............................................................................................... 20

HEATING LO (HEAT PUMP UNIT): .............................................................................................. 20

TEMPERATURE SETTING: ........................................................................................................... 20

UNIT OFF: .................................................................................................................................. 20

OTHER SETTINGS: ...................................................................................................................... 20

COMPRESSOR OFF TIME: ............................................................................................................ 21

SELF RECOVERY MODE (*): ....................................................................................................... 21

CHECK ALARMS: ........................................................................................................................ 21

OPTIONAL REMOTE CONTROL: .................................................................................................. 21

INSPECTION AND REPAIR OF ELECTRICAL SYSTEM ................................................ 23

COMPRESSOR AND FAN MOTOR CAPACITORS ............................................................................ 23

INSPECTION AND REPAIR OF REFRIGERANT SYSTEM ............................................. 23

PREVENTATIVE MAINTENANCE ....................................................................................... 23

UNIT STORAGE .......................................................................................................................... 24

ELECTRICAL DIAGRAM ....................................................................................................... 25

IOM5WK-1

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5WK07, 5WK14 115V/1 PH ..................................................................................................... 25

5WK18, 5WK23, 5WK26 208-230V 1 PH ............................................................................... 26

5WK36 208-230V/1PH ............................................................................................................. 27

TROUBLE SHOOTING GUIDE .............................................................................................. 28

TROUBLE SHOOTING GUIDE CONTINUED ..................................................................... 29

TROUBLE SHOOTING GUIDE CONTINUED ..................................................................... 30

TROUBLE SHOOTING GUIDE CONTINUED ..................................................................... 31

TROUBLE SHOOTING GUIDE CONTINUED ..................................................................... 32

TROUBLE SHOOTING GUIDE CONTINUED ..................................................................... 33

4

General Information

Koldwave 5WK Series Air Conditioners and

Heat Pumps are portable, water-cooled units

designed for applications where outside air

is not available and spot cooling is required.

The Koldwave air-conditioner cools an

entire area by discharging air through its

supply grille. Only power and condenser

water supply, water discharge, and

condensate drain piping are required for

installation.

The water-cooled condenser requires only

that amount of water needed to achieve the

desired high and low refrigeration system

pressures. The minimum condenser water

pressure for 85°F entering water temperature

can be found in the Specification and

Electrical Data section in this manual. A

refrigeration system head pressure actuated

water regulating valve regulates condenser

water.

Each unit is completely self-contained with

the entire refrigeration system, electrical

components, condenser and water valve

housed in one cabinet. All Koldwave units,

except the 5WK07, are provided with

heavy-duty casters. Two swivel-locking

casters prevent sliding; two stationary

casters provide handling ease for relocation.

The Koldwave 5WK07 is supplied with pads

on the bottom of the unit.

To attain the proper control of the water

flow rate entering the automatic water valve,

refer to the Specification and Electrical Data

Section to find the minimum water pressure

required for the condenser water supply.

The condenser water temperature leaving

the unit should not exceed 100°F. Ignoring

this compliance will void the warranty on

the refrigeration system. On heat pump

models it is not recommended to operate the

unit in the heating cycle when the water

temperature is below 50°F. Doing so could

reduce the specified heating capacity and

may cause the freeze control to cycle the

compressor off, resulting in a loss of

heating.

Model 5WK26

With the heat pump option the user can

manually select between the HEAT and

COOL functions using the touch pad control

panel or using the optional remote control.

5

Model Configuration

NOMENCLATURE

Example 5WK 14 B G A 1 A A A0

Code MD US R V C SS EC CC O

Field 1,2,3 4,5 6 7 8 9 10 11 12,13

1,2,3 – MODEL (MD)

5AK – Air Cooled Portable

5WK - Water Cooled Portable

4,5 – UNIT SIZE (US)

AK – Air Cooled Models

14 – 11,000 Btuh

18 – 18,300 Btuh

30 – 28,100 Btuh

39 – 36,800 Btuh

65 – 61,200 Btuh

WK - Water Cooled Portable

07 – 6,300 Btuh

14 – 10,800 Btuh

18 – 16,100 Btuh

23 – 23,000 Btuh

26 – 23,000 Btuh

36 – 34,700 Btuh

6 - REFRIGERANT (R)

A – R22

B – R410A

7 – VOLTAGE (V)

A – 208/3/60 (used only on 5WK65)

B – 230/3/60 (used only on 5WK65)

C – 460/3/60 (used only on 5WK65)

D – 575/3/60 (not used at this time)

E – 120/1/60

F – 208/1/60

G – 230/1/60

H – 100/1/50 (not used at this time)

J – 220/1/50 (not used at this time)

8 – CONFIGURATION (C)

A – Front Discharge with Adjustable Grilles

9 CONFIGURATION (SS)

1 – Stainless Steel

2 – Painted (5WK65 only)

10 – EVAPORATOR COIL (EC)

A – Standard Copper/Aluminum

E – Electrofin Coated

11 – CONDENSER COIL (CC)

A – Standard Copper/Aluminum

E – Electrofin Coated (Air Cooled Only)

N – Cupro-Nickel

12,13 – OPTIONS (O) WK Only

A0 – Standard Cooling

AP – Standard Cooling with High Lift Condensate Pump

AT – Standard Cooling for Cooling Tower Application (no water

valve)

AV – Standard Cooling for Cooling Tower Application with High

Lift Condensate Pump (no water valve)

H0 – Heat Pump

HP – Heat Pump with High Lift Condensate Pump

HT – Heat Pump for Cooling Tower Application (no water valve)

6

Installation Instructions

Electrical Requirements

Check the power supply to make certain it is

within 10% of the voltage listed on the data

plate located on the back of the unit.

Operating the unit on improper voltage

will void the product warranty.

Refer to the Rating Plate for voltage and

current information.

Each unit should have a dedicated circuit

breaker.

Plug Types

MODEL VOLTAGE PLUG TYPE

5WK07 120/1/60 5 – 15P

5WK14 120/1/60 5 – 15P

5WK18 208-230/1/60 6 – 20P

5WK23/26 208-230/1/60 6 – 20P

5WK36 208-230/1/60 6 – 20P

Some Koldwave units are equipped with

LCDI device service cords. The service

cords employed have plug configurations

and receptacle requirements as shown in the

chart above. Modifications to the cord will

void the product warranty.

Extension cords used with the Koldwave

units should match the plug configuration of

the service cord provided on the unit. The

extension cord must be equipped with an

equipment grounding conductor, grounding

type attachment plug, and a grounding type

attachment connector. The cord must also

have a rating suitable for the voltage and

ampacity.

Water Fitting Location

Prior to placing the air conditioner in the

desired position, note the exact location of

the water fittings on the valve plate on the

unit side panel.

IMPORTANT: Following the installation

and preventative maintenance instructions

can extend the length of service you

receive from your Koldwave unit.

7

Figure A

Water lines should be securely attached to

the water valve plate fittings. This is easily

accomplished through the quick connect

hose kit provided with the unit.

Note: The water connections must be made

as shown in Figure A. The unit will not

operate properly if the connections are not in

the correct orientation.

8

Specification and Electric Data

07 14 18

ELECTRIC DATA *** *** ***

Voltage/Phase/Hertz 115/1/60 115/1/60 230/1/60

Amperage 9.2 11.6 6.6

Fuse Size (Amps) 15 15 15

Watts 855 1107 1471

REFRIGERANT CHARGE

R410A (Ounces) 16 20 22

WATER SUPPLY

Minimum Water Pressure (PSI) 15 21 40.5

UNIT DIMENSIONS (INCHES)

Height with Casters 17.63 31.5 31.5

Height without Casters n/a 29.13 29.13

Width 22.38 25.00 25.00

Depth 12.00 10.19 10.19

Evaporator Filter (qty) (1) 15.75 x 9.13 x 0.5 (1) 15.88 x 18 x 0.5 (1) 24 x 11.75 x 0.5

NET UNIT WEIGHT (LBS.) 83 122 125

SHIPPING WEIGHT (LBS.) 89 131 134

23 26 36

ELECTRIC DATA *** *** ***

Voltage/Phase/Hertz 230/1/60 230/1/60 230/1/60

Amperage 10 10 14.2

Fuse Size (Amps) 15 15 20

Watts 2189 2189 2994

REFRIGERANT CHARGE

R410A (Ounces) 39 39 42

WATER SUPPLY

Minimum Water Pressure (PSI) 55.8 55.8 47.8

UNIT DIMENSIONS (INCHES)

Height with Casters 28.75 28.75 33.25

Height without Casters 26.38 26.38 28.5

Width 36 36 43.5

Depth 12.25 12.25 15.38

Evaporator Filter (qty) (1) 24 x 11.75 x 0.5 (1) 24 x 11.75 x 0.5 (1) 13.25 x 31.5 x 0.5

NET UNIT WEIGHT (LBS.) 183 183 245

SHIPPING WEIGHT (LBS.) 201 201 253

Time delay fuses and circuit breakers are recommended.

*** Electrical ratings based on 80/67 indoor air and 85e/95l water side conditions on high speed.

9

Serviceability

The Koldwave unit has removable panels to provide full service accessibility.

5WK07 Unit Construction Back View

Blower Wheel

Housing

Blower

Motor

Water

Regulating

Valve

Condensate

Pump

Evaporator

Coil

Condenser

Coil

Condenser

Water Outlet

Condenser

Water Inlet

Condenser

Drain Outlet

Capacitor

Suction

Service

Access

10

5WK07 Unit Construction Side View

Compressor

Contactor

Compressor

Transformer

Discharge

Service

Access

Hard Start

Assembly

A

ccu

m

u

l

ator

11

5WK14 Unit Construction Front View

Evaporator

Coil

Blower

Motor

Condensate

Drain Tube

Control

Panel

Compressor

Water

Regulating

Valve

Condenser

Coil

Temperature

Sensor

Discharge

Service

Access

Blower

Wheel

Housing

12

5WK14 Heat Pump Unit Construction Front View

Condenser

Coil

Reversing

Valve

Water Bypass

Valve

Discharge

Service

Access

A

ccu

m

u

l

ator

St

r

a

in

er

Water

Regulating

Valve

13

5WK14 Heat Pump Unit Construction Back View

Reversing

Valve

Water Bypass

Valve

Discharge

Service

Access

Compressor

Condensate

Pump

14

5WK18 Unit Construction Back View

Blower

Motor Blower

Wheel

Housing

Water

Regulating

Valve

Compressor &

Accumulator

Condenser

Coil Evaporator

Coil

Discharge

Service

Access

Suction

Service

Access

15

5WK18 Unit Construction Side View

Suction

Service

Access

Compressor

Hard Start

Assembly

Compressor

Relay

Discharge

Service

Access

Capacitor

A

ccu

m

u

lat

or

16

5WK23/26 Unit Construction Back View

Blower

Motor

Blower

Wheel

Housing

Condenser

Coil

Evaporator

Coil

Water

Regulating

Valve

Compressor &

Accumulator

17

5WK23/26 Unit Construction Left View

Hard Start

Assembly

Reversing

Valve

A

ccu

m

u

l

at

or

Condensate

Pump

Tr

a

n

s

f

o

rm

er

Compressor

Discharge

Service

Access

Suction

Service

Access

18

5WK36 Unit Construction Back View

Blower

Motor

Blower

Wheel

Housing

Compressor

Water

Regulating

Valve

Condenser

Coil

Evaporator

Coil

Blower

Motor

Capacitor

19

5WK36 Unit Construction Left View

Start

Capacitor

Reversing

Valve

Discharge

Service

Access

Tr

a

n

s

f

o

rm

er

Suction

Service

Access

Co

n

tactor

Run

Capacitor

Compressor

Potential

Relay

20

Unit Operation

Unit Power On:

Plug in the unit to the power source. The

LED display will show the current controller

version number for 0.5 seconds. Then, the

LED temperature indicator will illuminate

the set point for 5 seconds and then switch

to the room temperature reading. The Power

RED LED will illuminate. By depressing

any mode button, the Power LED will turn

off.

Fan Hi:

Depress the FAN HIGH button, the unit will

be in fan mode and the evaporator fan

blower will operate at High Speed. The

GREEN LED will illuminate accordingly.

Fan Lo:

Depress the FAN LOW button, the unit will

be in fan mode and the evaporator fan

blower will operate at Low Speed. The

GREEN LED will illuminate accordingly.

Cooling Hi:

Depress the COOL HIGH button, the unit

will be in cooling mode depending on

thermostat reading. The compressor will

turn on based on the thermostat reading and

the Compressor Off Time setting. The

evaporator fan blower will operate at High

Speed. The BLUE LED will illuminate

accordingly.

Cooling Lo:

Depress the COOL HIGH button, the unit

will be in cooling mode depending on

thermostat reading. The compressor will

turn on based on the thermostat reading and

the Compressor Off Time setting. The

evaporator fan blower will operate at Low

Speed. The BLUE LED will illuminate

accordingly.

Heating Hi (Heat Pump Unit):

Depress the HEAT HIGH button; the unit

will be in the heating mode depending on

the thermostat reading. The reversing valve

will operate to prompt the heat pump mode.

The compressor will turn on based on the

thermostat reading and the Compressor Off

Time setting. The evaporator fan blower

will operate at High Speed. The AMBER

LED will illuminate accordingly.

Heating Lo (Heat Pump Unit):

Depress the HEAT LOW button; the unit

will be in the heating mode depending on

the thermostat reading. The reversing valve

will operate to prompt the heat pump mode.

The compressor will turn on based on the

thermostat reading and the Compressor Off

Time setting. The evaporator fan blower

will operate at Low Speed. The AMBER

LED will illuminate accordingly.

Temperature Setting:

During any mode of operation, the user is

able to change the set point by depressing

the arrow buttons. The temperature

indicator will switch to display “set point

temperature”. Depressing the ARROW UP

or ARROW DOWN button will change the

set point. The SETPOINT LED will

illuminate. The temperature indicator will

switch back to display “room temperature”

after 5 seconds.

Unit Off:

Depress the OFF button at any time to turn

the SYSTEM MODE off. The unit will

remain idle until further instruction. The

Power RED LED will illuminate.

Other Settings:

During the cooling mode, the compressor

will only be energized if the temperature is

at least 2 degrees above the set point, and

de-energized once the temperature falls to 2

degrees below the set point. During the

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