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GENERAL INFORMATION

Thank you for your purchase of this equipment from the COOLINE Air Conditioners. We trust that this unit will provide you
with the proper Cooling/Heating requirements for years to come.

This unit has been tested to the extremes in terms of working conditions and successfully passed all the requirements of
quality, safety and performance.

However, we would suggest that you read carefully this manual before you proceed with the installation and operation of
this equipment and follow the instructions for a safe, trouble free operation.

WARRANTY TERMS

All of the VWL series of indoor vertical fan coil (concealed) units are covered by the standard warranty terms against any
manufacturer defect. Should you encounter any problem that falls under the warranty terms please contact your nearest
COOLINE representative.

INSPECTION PROCEDURES

The moment you receive this unit, check the packaging carton for any visible damage due to shipment and mishandling.
If you suspect any damage to the unit please call your nearest COOLINE representative.

After you open the carton, make sure that there is no visible damage to the body. Check the condition of the protective
Styrofoam. Manually rotate the blower wheels to make sure that it is running freely.

NOTE: Any damage, visible or concealed should be reported immediately to the delivery man or driver and noted on the
shipping invoice.

Inside every VWL packaging you will find:

- VWL Concealed FCU

1 No

- Service Manual

1 No

SAFETY ISSUES

When performing any task pertaining to the installation and servicing of the unit, the skilled technician should observe the
following safety measures:

WARNING:
Electric shock hazard and / or serious injury from rotating parts can result from improper handling and
servicing. Only skilled and trained technicians should attempt at installing and servicing these units.

CAUTION:
Improper handling and operating procedures might adversely affect the proper functioning of the unit.
Please read carefully this manual before operating the unit.

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Summary of Contents for VWL series

Page 1: ...CONCEALED CHILLED WATER VERTICAL FAN COIL UNITS VWL SERIES INSTALLATION OPERATION MAINTENANCE MANUAL...

Page 2: ...or unit installation 4 Piping connection 5 Condensate drain connection 5 Electrical connection 5 Unit dimensions 6 Coil connection dimensions 6 Typical wiring diagram 7 8 Valve packages 9 Parts list 9...

Page 3: ...set are available as an option 3D for two pipe system and 4D for four pipe system These valves are supplied loose for field installation THERMOSTAT An attractive wall mount three speed thermostat wit...

Page 4: ...on for any visible damage due to shipment and mishandling If you suspect any damage to the unit please call your nearest COOLINE representative After you open the carton make sure that there is no vis...

Page 5: ...nel Clear the floor from all objects with sharp edges Remove liquid or slippery material from the installation site before proceeding C Indoor unit installation Unit can be installed on the floor or m...

Page 6: ...ines must be installed level in both the horizontal vertical plane Insulation of pipes The pipe insulation should cover both inlet outlet pipes as shown below F Electrical connection Please ensure pow...

Page 7: ...ions are in mm dimensions in brackets are in inches CHILLED WATER HOT WATER CHILLED WATER No OF MOTORS No OF BLOWERS 1 Mounting holes 4 No 2 Air vent 3 Drain pan 4 5 8 OD coil outlet 5 5 8 OD coil inl...

Page 8: ...R LINE 1 L2 N LINE 2 OR NEUTRAL OHT OVER HEAT THERMOSTAT _ _ _ FIELD WIRING FACTORY WIRING NOTES 1 POWER SUPPLY 220 240V 1PH 50Hz 2 USE COPPER CONDUCTOR WIRES ONLY 3 USE HEATER AS PER OPTION REQUIRED...

Page 9: ...ACTORY INSTALLED PLEASE READ BROKEN LINES AS CONTINUOUS LINES 4 FM2 NOT REQUIRED FOR SINGLE MOTOR AHU IF FM2 IS FACTORY INSTALLED PLEASE READ BROKEN LINES AS CONTINUOUS LINES 5 FREE END OF FAN MOTOR L...

Page 10: ...BLOWER WHEEL 800 707 58 800 707 57 58 800 707 57 58 800 707 57 58 800 707 57 58 BLOWER MOTOR 800 827 17 800 827 08 800 827 11 800 827 08 800 827 11 RETURN AIR FILTER 800 248 20 800 248 22 800 248 23 8...

Page 11: ...rature setting by pressing the or button to increase or decrease the set value displayed on the LCD of the thermostat Fan speeds can be selected by positioning the switch S2 to LOW speed MEDIUM speed...

Page 12: ...lue 0 1K Hysteresis 0 5K Switching current at 250 VAC 3 2 A Maximum fan current 6 3 A Sensor system NTC in housing Optional Remote Sensor 193720 Switches Heat Off Cool Fan 3 Fan Speed Indicator lamps...

Page 13: ...sate will flow out easily A standard pipe cleaner for 1 2 ID pipe may be used Periodic checks of the drain pipe should be taken during summer operation as there is a possibility of it becoming clogged...

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