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iO HVAC Controls ZP2-HC-ESP, Installation And Operation Instructions Manual, Page: 3 / 7

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iO HVAC Controls ZP2-HC-ESP Installation And Operation Instructions Manual Download Page 3

ZP2-HC-ESP TERMINAL DESIGNATIONS

3

TRANSFORMER

24VAC POWER

ZONE 1

THERMOST

AT

C (24V COMMON)

R (24V HOT)

W  (1ST STAGE HEAT)

Y1 (1ST STAGE COMPRESSOR)

G (FAN)

POWER CLOSE

COMMON

POWER OPEN

ZONE 1

DAMPER

R (24V HOT)

W (1ST STAGE HEAT)

Y1 (1ST STAGE COMPRESSOR)

G (FAN)

HV

AC UNIT

WIRE TO ZPA-SPS

PRESSURE SENSOR

WIRE TO ZPA-DTS

DISCHARGE TEMPERATURE

SENSOR

ZONE 2

THERMOST

AT

C (24V COMMON)

R (24V HOT)

W  (1ST STAGE HEAT)

Y1 (1ST STAGE COMPRESSOR)

G (FAN)

POWER CLOSE

COMMON

POWER OPEN

ZONE 2

DAMPER

Summary of Contents for ZP2-HC-ESP

Page 1: ...e care of the opposite call If zones being served heating or cooling have not been satisfied within 20 minutes while an opposite call is taking place the system will changeover When the zone is satisf...

Page 2: ...ED LIMIT LED ON WHEN DAS IS DETECTED BLINKS WHEN TEMP EXCEEDS HIGH OR LOW LIMIT ZONE 1 DAMPER LED ZONE 2 DAMPER LED ZONE 2 THERMOSTAT ZONE 2 DAMPER HVAC UNIT TERMINALS DISCHARGE AIR SENSOR STATIC PRES...

Page 3: ...PRESSOR G FAN POWER CLOSE COMMON POWER OPEN ZONE 1 DAMPER R 24V HOT W 1ST STAGE HEAT Y1 1ST STAGE COMPRESSOR G FAN HVAC UNIT WIRE TO ZPA SPS PRESSURE SENSOR WIRE TO ZPA DTS DISCHARGE TEMPERATURE SENSO...

Page 4: ...n in the OFF position this will prevent air from bleeding into the zone when it is not calling even if the static pressure goes above the setpoint This is sometimes useful for basement zones or zones...

Page 5: ...mately 18 to 30 from the heat pump electric strip heater or the furnace heat exchanger in a fossil fuel application Slide the discharge air probe into the hole and use two self tapping sheet metal scr...

Page 6: ...If system static pressure goes above setpoint the SPS LED will light along with the selected non calling zone LED until the non calling zone damper modulates to relieve the static pressure then both L...

Page 7: ...rammable or non programmable Auto or manual changeover Sensors ZPA DTS Discharge Temperature Sensor NTC Type 3 10K 77 F 3 77 F FIELD WIRING TERMINALS Zone Thermostats C 24Vac Common R 24Vac Hot W Firs...

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