ZP3-HPS-ESP Panel Layout
2
3 AMP FUSE PROTECTS
PRINTED CIRCUIT BOARD
3 AMP FUSE PROTECTS
THE RELAY CONTACTS
ZONE 1
THERMOSTAT
ZONE 1 DAMPER
24 VOLTS
PURGE
SWITCH
24 VOLT POWER LED
AUXILIARY OR EHEAT LED
1ST STAGE COMPRESSOR LED
2ND STAGE COMPRESSOR LED
FAN LED
LIMIT LED
ZONE 1 DAMPER LED
ZONE 2 DAMPER LED
ZONE 3 DAMPER LED
REVERSING VALVE LED
O/B REVERSING
VALVE SWITCH
CONVENTIONAL HEAT PUMP
OR FOSSIL FUEL SWITCH
3 AMP
3 AMP
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302HP
ZONE 2
THERMOSTAT
ZONE 2 DAMPER
ZONE 3
THERMOSTAT
ZONE 3 DAMPER
HVAC UNIT
TERMINALS
DISCHARGE
TEMPERATURE
SENSOR
OUTDOOR SENSOR
(USED FOR HIGH &
LOW BALANCE POINT
CONTROL
STATIC PRESSURE SENSOR LED
STATIC PRESSURE
SENSOR TERMINALS
LOW BP LED
LOW BP SETPOINT DIAL
SPEED UP
BUTTON
HIGH LIMIT
ADJUSTMENT
SWITCHES
HIGH BP LED
HIGH BP SETPOINT DIAL
ESP ZONE BYPASS
SELECTOR
PINS
1 2
