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EGW06-PCPEG-20140813
TM
TM
Section IV: Installation
BUILDING FIRE CONTROL SYSTEM (9)
The ECC-PCP can receive a contact closure signal from a building fire control system. This input of the controller must
be connected to dry (voltage free) contacts only. When this input receives a contact closure, the PoolComPak™ unit
compressor and fan will be shut down and the remote interface unit will show an alarm condition. When the contact
closure opens, The PoolComPak™ unit will resume normal operations. It is possible to change the operation of the fire
trip input to be active on open instead of close. See
in the Operation section for further explanation.
RETURN AIR SENSOR (10)
The return air sensor measures air temperature and relative humidity. The sensor is normally factory mounted in the
PoolComPak™ unit return air section. However, with the optional economizer it is necessary to field mount this sensor
in the duct work. The sensor must be located in the return duct upstream of the exhaust duct connection. (See
for a typical location of the sensor in the economizer system.)
When field mounting is necessary, the sensor will be provided from the factory and must be field wired using 22 AWG,
copper 4-conductor, shielded, twisted-pair cable.
PURGE MODE INPUT (11)
The ECC-PCP can receive a contact closure signal from an external source to activate purge mode operation. During
purge mode, the compressor is disabled and the economizer output is activated to bring in 100% outside air.
AC PROOF INPUT (12)
An optional interlock used with certain types of heat rejection condensers. Dry contact closure indicates a problem and
prevents compressor operation in air cooling mode.
POOL WATER TEMPERATURE SENSOR (13)
Units equipped with a pool water heating condenser require installation of factory supplied pool water temperature
sensor. It must be mounted upstream of the PoolComPak™ and the auxiliary water heater. The sensor can be threaded
directly into a 1⁄4” FPT fitting. Electrical connection should be made with 22 AWG copper, 2 conductor, shielded,
twisted-pair cable. Connect the shield drain wire to ground at the PoolComPak™ end only.
