4 Amp fuse protects
printed circuit board
2 Amp fuse protects
the relay contacts
ZONE 1
THERMOSTAT
ZONE 1
DAMPER
ZONE 2
THERMOSTAT
ZONE 2
DAMPER
ZONE 3
THERMOSTAT
ZONE 3
DAMPER
24 VOLTS
PURGE
SWITCH
HVAC UNIT
TERMINALS
DISCHARGE
AIR SENSOR
24 VOLT POWER LED
AUXILIARY HEAT LED
FIRST STAGE COMPRESSOR LED
SECOND STAGE COMPRESSOR LED
FAN LED
HIGH / LOW LIMIT LED
ZONE 1 DAMPER LED
ZONE 2 DAMPER LED
ZONE 3 DAMPER LED
RH/RC JUMPER
Z-300-HPS Installation and Operation Instructions
3 Heat / 2 Cool Heat Pump with Fossil Fuel option
Auto Changeover - First Call Priority - Time Share
Z NE
N
E
E
R
G
E
H
T
Zone Control Made Simple
TM
TM
REVERSING VALVE LED
CONVENTIONAL HEAT PUMP
OR FOSSIL FUEL SWITCH
O/B REVERSING
VALVE SWITCH
OUTDOOR SENSOR
(USED FOR FOSSIL FUEL
APPLICATIONS)
IF NOT USED, LEAVE
FACTORY JUMPER IN
OTS
OTS
(When set to ON, fan will
continue to run and air will
be purged to last zone
calling for 1 minute
after call is satisfied)
