General Information
Unit Nameplate
The unit nameplate is located at the front of the unit. It includes the unit model number, serial number, electri- cal characteristics, refrigerant charge, and other pertinent unit data.
Compressor Nameplate
The nameplate for the compressors are located on the compressor shell.
Unit Description
Before shipment, each unit is leak test- ed, dehydrated, charged with refriger- ant and run tested for proper control operation.
Water-to-Refrigerant Coils
The
The heat exchanger is leak tested to assure there is no cross leakage be- tween the water and refrigerant gas.
Water Connections
Water connections are located at the unit front for both the WPVJ and WPHF units. They are clearly labled for supply/return connection. Sizes are as follows.
Dia. | Type |
|
|
3/4" | WPHF |
|
|
1" | WPHF |
|
|
1" | WPVJ - Water in/out |
|
|
3/4" | Drain |
|
|
1/2" | Desuperheater |
|
|
Blower/Motor
The blower and motor is located inside the unit cabinet. The motor may be easily removed for service through the equipment blower access panel.
Controls
The control system offered to control the unit is a Basic 24 volt control, Basic 24 volt control, or TracerTM ZN510 control. A 50 VA transformer is factory supplied on the Basic 24V control con- figurations. A 75 VA transformer is fac-
tory supplied on the ZN510 (digital) control configurations.
ZN510 Controls
(WPVJ and WPHF option)
Units incorporating the ZN510 control option design will include a digital LonTalkTM certified control board. The control board will support such op- tions as: random start delay, heating/ cooling status, occupied/unoccupied mode and fan/filter status.
Power wiring is made at the contactor. See manual
Schrader Connections
Connections for the low and high side of the refrigeration system are located conveniently at the equipments front panel. Sheet metal removal is not re- quired for positive connection to the high and low schrader connections.
5 |
