Universal UCS-15A User manual

Brand: Universal

Model: UCS-15A

Type: User manual

Universal UCS-15A is an industrial air-cooled chiller capable of cooling mediums to temperatures around 7°C. This versatile device finds applications in various industries like textile, chemical, machinery, electronics, medicine, food, and more. Its key features include:

Precise Temperature Control: Delivers chilled water at a consistent temperature of 7°C (adjustable to 5°C or lower upon request).
High Cooling Capacity: Boasts a nominal cooling capacity of 37.4 x 10³kcal/Hr (12.37 tons).
Energy Efficiency: Equipped with a digital control system and multi-protection devices to optimize energy consumption and prevent overloading, high/low pressure issues, phase lacking, and water lacking.

Precise Temperature Control: Delivers chilled water at a consistent temperature of 7°C (adjustable to 5°C or lower upon request).
High Cooling Capacity: Boasts a nominal cooling capacity of 37.4 x 10³kcal/Hr (12.37 tons).
Energy Efficiency: Equipped with a digital control system and multi-protection devices to optimize energy consumption and prevent overloading, high/low pressure issues, phase lacking, and water lacking.

MANUAL FOR

AIR COOLED

INDUSTRIAL CHILLERS

MODEL: UCS-15A

Universal Chilling Systems, LLC.

Manual Modelo 15 Air Cooled

Chiller

Unit Manual Contents

Specification

Transportation

Unit Installation

Electrical Installation

Commissioning

Troubleshooting

Operation Manual Contents

Appearance of DM500B

Face of pages

User's inquiry operation

User's set

Unit Operation

Trouble disposal

Settings

Diagram of electrical connection

Universal Chilling Systems, LLC.

Manual Modelo 15 Air Cooled

Chiller

1.1 Product Description

The UCS series Products are chillers that can produce cooling medium of temperature around 7º C or -

5º C, and lower on requirement of our customers.

The chillers are applicable to the industries of textile, chemicals, machinery, electronics, medicine and

health, food etc.

Main components

etc.

Universal Chilling Systems, LLC.

Manual Modelo 15 Air Cooled

Chiller

1.2 Specifications

MODEL

UCS-15A

Cooling Condition

Chilled Water Inlet Temp.

12º C

Chilled Water Outlet Temp.

7º C

Ambient Temp.

35º C

Nominal Cooling Capacity

Ton

12.37

x 10³kcal/Hr

37.4

Power Supply

3P-480V-60Hz

Compressor

Type/QTY

Fully Closed Scroll/1 piece

Cooling Input Power(HP)

19.83

Cooling Operation Current(A)

22.40

Evaporator

Chilled Water Flow(m³/h)

7.48

Interface Size

DN50

Condenser Fan

Quantity

Power/HP each

1.47

Operation Current(A) each

1.85

Safety Protection Device

High &low voltage protection, current overload protection,

antifreezing protection, electronical delay protection

Water Pump

Power (HP)

2.01

Current (A)

3.30

Head(M)

Water Tank

Material

304SS

Volume(L)

250

Overall Size

Length (inches)

Width (inches)

Height (inches)

Overall Unit

Weight/Lbs

1,655

Power/HP

24.78

Current(A)

29.40

Refrigerant Type

R407C

Notice:

Normal conditions: Chilled water inlet temperature 12º C, outlet temperature 7ºC, ambient temperature

35ºC

Standard power supply: 3P-480V-60Hz, proposed three-phase four-system, allowing voltage fluctuation

-15~10%, frequency fluctuation ± 2%.

Host for the actual lift is pump lift host internal head loss minus. (1mH20=9.8kPa)

Universal Chilling Systems, LLC.

Manual Modelo 15 Air Cooled

Chiller

2. Transportation

Only the bottom support is allowed to support the unit, and fort vehicle or crane vehicle is required to move the

unit.

The unit must be kept vertical in the transportation; the chains cannot touch the side heat exchanger, top, and

side plates.

3. Installation

3.1. Positioning

The unit must be installed where the air flow is good, in door sheltered from raining.

The space on the top must be larger than 2 meters, which is good enough to bring the hot air to environment.

The space at the air inlet side of the unit must be larger than 1.5 meters that is necessary to normal operation of

it.

A strong, water level concrete base, with height over 20 cm is needed. The repair and maintenance space for

man is to be left. The environment of the unit is -15~50°C, relative humidity 80%.

Universal Chilling Systems, LLC.

Manual Modelo 15 Air Cooled

Chiller

3.2 Air Duct

An air duct is needed for the place where the air flow is not guaranteed. As shown below in the diagram.

3.3. Pipeline Installation

The unit has been tested and inspected before delivery. What the users need to do is to just fix on its chosen

position, connect to chilled water system, and power supply following the instructions.

The water flow protection switch is necessary in the chilled water system to prevent accident of evaporator

freezing broken in case there is no water or too less water in the pipe. It is recommended to fix the water flow

switch outside the unit box.

4. Electrical Installation

4.1

The UCS Chillers have temperature controller and electrical control box in the unit, the work of electrical

installation is only to connect the unit to power supply.

4.2

In case other control is needed, it must be done observing the local electrical standard and rules to

guarantee the safety and stable operation.

4.3

Wire Selection

It is recommended to select the wire thickness based on 1.25-1.3 multiple the total current of the chiller and

other auxiliary facility as pumps etc.

4.4

Power Supply Requirement

Voltage: Rated V -25~10%; Frequency: Rated Hz±2%; In case the Voltage is over the limit, it is not allowed to

start the unit.

Universal Chilling Systems, LLC.

Manual Modelo 15 Air Cooled

Chiller

5. Commissioning

5.1. Check before Start Operation

Check the environment that everything is normal.

Check the power supply connection and the power supply to be sure the phase voltage conforms to the

requirement.

Check the water valves on the chiller water pipelines to be sure it is opened. Check the pumps are

normal after pressure test, dirt discharge, air discharge and trial operation.

Check the water level in the water vessel, the connection of the water supplementary inlet to the vessel,

overflowing outlet is connected to the sewer.

5.2. Operation of Chilled Water System

The chilled water need to be processed, to keep the PH value between 7.0-8.5. The higher alkalinity may

accelerate the corrosion of the copper pipes, decrease the use time of the heat exchangers.

B. After the unit and auxiliary facility are fixed, the water lines need to be processed for pipe cleaning,

pressure test, air discharge, trial running of chilled water system etc. The unit commissioning and trial running

can be started after confirmation of all is normal.

C. Operation of the unit

Over 12 hours of power supply on to the unit is needed before the unit start.

Start order for the air cooled unit: chilled water pumps  unit;

Stop order for the air cooled unit: unit  chilled water pumps;

D. After start, judge the operation status by observing the high and low pressure gauges. The normal range

of the high pressure is 8-16kg/cm2, the low pressure range is 1.5-4kg/cm2

For the air cooled unit, observe the rotation direction of the fans, if it runs in wrong direction,

change the power supply wire connection to correct it before start.

The set value of all protection devices must not be changed, they have been set at correct value

before delivery.

In case the error alarm is on and the unit is stopped, first press the stop button, the alarm will go

off, and then check the trouble reason. Do not start forcibly before the trouble is eliminated.

Do not stop the unit by cut off the main power supply unless in emergency case. If the unit

needs to be stop for long time in winter, stop the unit first, then cut off the main power supply, and

drain the water in the system.

To guarantee the normal and stable operation of the unit, keep clean, tidy, and air flow in the

machine rooms; clean the condensers periodically.

5.3.

Maintenance

Keep the clean of the condensers, clean it periodically and good air flow condition.

Clean the condensers after a period of operation, especially for the dirty environment and the H/L

differential pressure acts and refrigeration capacity deceased.

Universal Chilling Systems, LLC.

Manual Modelo 15 Air Cooled

Chiller

6. Troubleshooting

Troubles

Causes

Solutions

Cannot start

1. Power supply is not available or

voltage too low

1. Clear the electrical trouble, and provide the

power supply on requirement

2. Wrong Temperature set, the contactor

is always off

2. Make correct temperature set

3. Over load protection not recovered

after cut off

3. Press the recovery button

High pressure too

high

1. Too dirty of the condensers

1. Clean the condensers

2. Too much refrigerant filled

2. Discharge some refrigerant

3. The expansion valve opens too small

3. Adjust the opening of the valve

Low pressure too

low

1. Too little of the refrigerant.

1. Leakage check, increase refrigerant and

adjust the valve

2. Blockage of the filter.

2. Clean or change the filter

3. The expansion valve opens too small

3. Adjust the opening of the valve

Frosty of suction

line and/or

compressor

1. The expansion valve opens too large

1. Adjust the opening of the valve

2. Too much refrigerant filled

2. Discharge some refrigerant

3. Load too small

3. Increase the load

Universal Chilling Systems, LLC.

Manual Modelo 15 Air Cooled

Chiller

Operation Manual of Electrical Control of

UCS Series Industrial Chillers

Contents

Appearance of DM500B

Face of pages

User's inquiry operation

User's set

Unit Operation

Trouble disposal

Settings

Diagram of electrical connection

Universal Chilling Systems, LLC.

Manual Modelo 15 Air Cooled

Chiller

1. Appearance of DM500B

The panel as fig 3-1, with 12 keys, 6 of them is lighted; the panel dimension is 196mm x 115.5mm W

2. Face of Pages

2.1. Start Display

WELCOME TO OUR

CONTROLLER 9

Air-Water Cool

500ATYF02V1002

First page shows "welcome" count down is shown at the right bottom in reverse color.

The second page, first line shows model and mode, second line shows version number of the program

the left, and count down is shown at the right bottom in reverse color.

2.2.

Main Face

After the count down if finished, the user's main face is shown as below:

TIN: l0 °C T.OUT 5°C

SET: 5

STOP

Means turn up, means turn down.

Universal Chilling Systems, LLC.

Manual Modelo 15 Air Cooled

Chiller

If the sensor of T.out or T.in shows no temp, the show will be °C , ERR shows…ºC

Welcome show

WELCOME TO OUR

CONTROLLER

Model show (Water cooled chiller), mode (cool only, Heat pump, E heating), run mode

(cool,

heat, fan, water, defrost) and start type (manual, timing).

c. Face show: show main temp (T.in, T.out), set temp and running status (run, time delay,

stop).

The reverse color shows the control temp for energy adjustment (T.in as control temp as fig below).

T.IN means temperature of returning water or air; T.OUT means temperature of out water or air

3. User’s Inquiry Operation

Press ENQIRE, shows as below:

TROUBLE LIST

TROUBLE HIS.

This system includes inquiring content as below:

TROUBLE LIST

TROUBLE HIS.

RUN TIME CHECK

CLOCK CHECK

Select by or , enter each page by OK, by RETURN come back to main face.

Air Water. M.

H.PUMP COOL

Universal Chilling Systems, LLC.

Manual Modelo 15 Air Cooled

Chiller

1) TROUBLE LIST

In inquire page, select TROUBLE LIST by and , press OK to enter TROUBLE LIST

show.

INQUIRE

COMMU.ERR

The second line shows trouble. Press RETURN to up level menu.

2) TROUBLE HIS.

In inquire page, select TROUBLE HIST. by and , press OK to enter TROUBLE

HIST show.

1: INVERSE PHASE

2: CM1 ERR

The max number of historical trouble is 8, with the present trouble placed in front lines.

Press RESET for 3 S to remove the historical trouble.

3) RUN TIME CHECK

In inquire page, select RUN TIME CHECK by and , press OK to enter RUN TIME

CHECK show.

COM1: 0 H 0 H

COM2: 0 H 0 H

The accumulated run time will be showed according to the compressor number.

4) CLOCK CHECK

In inquire page, select CLOCK CHECK by and , press OK to enter CLOCK CHECK

show.

2009/01/04

13:14:40 WED.

The time show here is the real time, the start and stop time will act according to this time.

Press SET to enter time set state for hour, minute setting.

Universal Chilling Systems, LLC.

Manual Modelo 15 Air Cooled

Chiller

4. User’s Set

In user’s main face, press SET entering user’s set face, the show as below:

SET T.OUT: 5º C

SET Mode: COOLING

The set face includes:

Set T. OUT: 5 °C (shows T. OUT set when the T. OUT is to be controlled.)

Set mode: cool

On/Off: M. (M/week timing/timing once)

TIMING SET

Use set

Only 2 will be shown, other contents can be inquired by and . Select one of the 4 items,

change it by <+> , <->, the change will go into effect immediately. The change will be kept after power

off. It will return to main face in this face more than 30 S without touch. After the change, press

RETURN to come back to main face.

M/week timing/time once: M means the automatic on and off is stopped; week time means to start

or stop on set time on the set week day. Time once means to start or stop on set time each day in the

set period. If the clock is set as 0, it means no timing in the period. If the timing once is selected, when

the set date is expired, press SET, the present date will set automatically. When select the week

timing and timing once at the same time, the priority will be to the timing once.

The TIMING SET

In the user's page, select TIMING SET by and , press OK to enter TIMING SET.

If the ON/OFF is set to M, the TIMING SET will not be available.

If the ON/OFF is set to WEEK TIMING, it shows below:

WEEK TIMING SET

DATE TIMING SET

c) If the Timing is set to timing once, it shows below:

DATE TIMING SET

CLOCK TIMING SET

In the B face, select WEEK TIMING by and , to set WEEK TIMING, press OK, then

show will below:

SUN.

> MON.

Universal Chilling Systems, LLC.

Manual Modelo 15 Air Cooled

Chiller

Select weekday by and , press OK to change the state. If there is > before the

weekday, it means on the weekday the automatic ON/OFF will act, if no >, the ON/OFF will not be

acted automatically.

In C face, select DATE TIMING by and , press OK to enter DATE TIMING, the show is

below:

DATE: 2005 / 01 / 01

2005 / 01 / 01

Select the item to be changed by and , press <+> , <-> to change the item.

In b or c face, select SET CLOCK by and , press OK to enter time set page as below:

ON: 07h 59 m

OFF: 22h 30 m

Select the item to be changed by and , press <+>,<-> to change the item.

The data will be kept in memory after the power is off. After the change, press RETURN to come

back to menu of up level.

ii) USE SET

In user's page, select USE SET by and , it will show as below:

COMP.1: NONE

COMP.2: USE

The show depends on the number of compressor and heater in RUN SETTINGS  SYS. SETTINGS and

mode of OUTPUMP. The energy adjustment and trouble check will not be available in case the

compressor or heater is set at NONE.

Select the item to be changed by and , press <+>,<-> to change the item. The data will be

kept in memory after the power is off. After the change, press RETURN to come back to menu of up

level.

Universal Chilling Systems, LLC.

Manual Modelo 15 Air Cooled

Chiller

5. Settings

Default password of repairman's: 1 2 3, that is the key: START, INQUIRE, SET.

When system is in STOP page in the user's main face, press and <+> at the same time, it will

enter SYS. SETTINGS page as below.

INPUT PASSWORD

****

Then input the password, press OK. If is the wrong password, the show will be below:

ERROR! TRY AGAIN

Press RETURN to come back to main face.

The password is two levels, after password of manufacturer’s or repairman’s is put in, it will enter RUN

SETTINGS menu as below:

1: RUN SETTINGS

2: MODIFY PWD

When enter by the repairman's password, there will be 2 items in front of the menu.

1: RUN SETIINGS

2: MODIFY PWD.

RUN SETTINGS

In RUN SETTINGS, select RUN SETTINGS by and , press OK to enter RUN SETTINGS show

below:

1: SYS. SETTINGS

2: SETTINGS 1

There are 10 items for RUN SETIINGS, and there are sub-items under each item. The 10 items are

below:

SYS. SETTINGS (Manufacturer's password can set all; repairman's password can change only

the items of POINT and SWITCH)

TIME SETTINGS 1

TIME SETTINGS 2

Universal Chilling Systems, LLC.

Manual Modelo 15 Air Cooled

Chiller

TEMP. SETTINGS 1

TEMP. SETTINGS 2

TEMP. SETTINGS 3

TEMP REVISE

INPUT SET 1

INPUT SET 2

10.

SENSOR SET

II.

MODIFY PWD

Select MODIFY PWD by and , press OK to enter MODIFY PWD as below:

All keys on the panel can be taken for password except OK and RETURN.

A. When enter by the manufacturer's password , only the manufacturer 's password can be

modified, show is below. First new password show:

INPUT5-6BIT PWD

******

The manufacturer's password must be 5-6 Bit; after the new password is in, the show is below:

PASSWORD CHECK !

******

If the password is the same for both times, the show is below:

PASSWORD ACCEPT

PRESS ANY KEY !

If the check password is not the same as the new password, return to new password

(manufacturer's page).

B. When enter by the repairman's password, only the repairman's password can be modified ,

show is below:

First new password show:

INPUT1-4BIT PWD

****

Universal Chilling Systems, LLC.

Manual Modelo 15 Air Cooled

Chiller

The repairman’s password must be 1-4 Bit; after the new password is in, the show is below:

PASSWORD CHECK !

******

If the password is the same for both times, the show is below:

PASSWORD ACCEPT

PRESS ANY KEY !

If the check password is not the same as the new password, return to new password (repairman’s

page).

6. Unit Operation

6.1.

Start

Press the START to start the unit: start the pump time delay start the cooling fan time delay

start the compressor. All the delay time can be changed.

6.2.

Stop

Press the STOP to stop the unit. Stop the running compressor time delay stop the cooling fan

time delay stop the pump. The delayed time can be changed. In the delaying period, the user's page

show: time delay, after the delay, the show is stop.

6.3.

Trouble and Cause

i) Compressor breakdown: the cause may be compressor overload, overheat, too high or low

pressure.

ii) Unit breakdown: Pump overload, water lack, error of sensors of in and out water, error of

power etc.

6.4.

Run Indication

The run indicator will close after all system is running; it will open after all equipment stop.

6.5.

Alarm

The alarm will be on if some system is out of order; if all trouble is disposed, the alarm will be off.

Universal Chilling Systems, LLC.

Manual Modelo 15 Air Cooled

Chiller

7. Trouble Disposal

When trouble occurs, the alarm will work and the reset indicator flickers. Press the sound erasing key,

the alarm sound will stop; the reset indicator flickers continue. After the trouble is disposed, press

RESET and the trouble record is erased. When all trouble is reset, the reset indicator will go off. RESET

is available in all pages of user's face. When the system occurs trouble from the no trouble state, it will

enter error inquire automatically. After it enters the AUTOMATI C INQUIRE, it will not return even if no

key is pressed

8. Settings

Settings may vary with different types of unit.

Main menu

Sub menu

Content

AIR-WATER

1: SYS. SETTINGS

SYS.

AIR-WATER ,W-W SYS.WATER-AIR, AIR-AIR

AIR-WATER

MODE

COOL, HEATER, H.PUMP

COOL

OUTPUMP

NONE, CIRCLE, RECYCLE

NONE

COMP.NUM

Max 4 - Min 1

ELEC.H.NUM

Max 3 - Min 1

POINT

T.IN, T.OUT

T.OUT

SWITCH

SW.1, SW.2

SW.1

Co.

None

2:TIME SETTINGS 1

PROTECT

Max 255S; Min OS ;

180S

CYCLE

Max 255S; Min OS;

120S

COOLER_D

Max 255S; Min OS ;

15S

CHILLER_D

Max 255S; Min OS;

30S

ERR.DELAY

Max 99S; Min OS;

SCR .SAVER

Max 255M; Min OM;

30M

4:TEMP SETTINGS 1

ADD DIF

Max 25º C | Min 1º C

SUB DIF

Max 25º C | Min 1º C

LOWER_L

Max 35º C | Min -20º C

-10

LOW T

Max 20º C | Min -20º C

-7

LOWT.RE

Max 25º C | Min -20º C

-5

7: TEMP REVISE

Max 9º C | Min -9º C

OUT

Max 9º C | Min -9º C

8: INPUT SET 1

CM HP

Normally closed, Normally open

Normally closed

CM LP

Normally closed, Normally open

Normally closed

CM ERR

Normally closed, Normally open

Normally open

PW ERR

Normally closed, Normally open

Normally open

Universal Chilling Systems, LLC.

Manual Modelo 15 Air Cooled

Chiller

9: INPUT SET 2

PUMP LACK

Normally closed, Normally open

Normally closed

FAN OVERL.

Normally closed, Normally open

Normally open

FAN OVERH.

Normally closed, Normally open

Normally open

P_SWITCH

Normally closed, Normally open

Normally closed

10: SENSOR SET

Use, No Use

Use

OUT

Use, No Use

Use

Universal Chilling Systems, LLC.

Manual Modelo 15 Air Cooled

Chiller

Universal UCS-15A User manual

Brand: Universal

Model: UCS-15A

Type: User manual

Precise Temperature Control: Delivers chilled water at a consistent temperature of 7°C (adjustable to 5°C or lower upon request).
High Cooling Capacity: Boasts a nominal cooling capacity of 37.4 x 10³kcal/Hr (12.37 tons).
Energy Efficiency: Equipped with a digital control system and multi-protection devices to optimize energy consumption and prevent overloading, high/low pressure issues, phase lacking, and water lacking.

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Universal UCS-15A User manual

Universal UCS-15A User manual

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