Wiring Diagrams

Table Of Contents

HPZ AND HSR HYDRONIC PANEL WIRING DIAGRAMS

33-00476—01 12

Fig. 11. Staging a boiler + secondary heat using a 2 stage thermostat without isolation relay

(thermostat with special Geothermal radiant settings required. See models listed in Note 6 above).

THERMOSTAT OR EIM

FURNACE

Zone 1

Priority

Zone 2

Zone 3

24 VAC THERMOSTATS

COMMON WIRE IS OPTIONAL ON MOST NON-WI-FI MODELS. IF COOLING IS NOT USED, DISREGARD THE Y AND G WIRES.

THIS DIAGRAM SHOWS HOW THE THERMOSTAT OPTIONS LISTED BELOW CAN BE INTEGRATED TO A HYDRONIC PANEL FOR STAGE 1 HEAT AND A DIFFERENT HEAT

SOURCE FOR BACKUP HEAT. THE DIAGRAM DOES NOT SHOW WIRING FOR THE BOILER, PUMP(S), VALVES, DHW CIRCUIT, ETC. SEE OTHER DIAGRAMS IN THIS FILE

OR THE LITERATURE THAT CAME WITH THE HOT WATER PANEL FOR THE REST OF THE HOT WATER PANEL WIRING.

IF THE BACKUP HEAT SOURCE IS ZONED FORCED AIR, THEN THE THERMOSTAT WOULD WIRE TO ONE OF THE ZONES ON THE ZONE PANEL RATHER THAN TO THE

FURNACE DIRECTLY.

PERTINENT THERMOSTAT CON FIGURATION SETTINGS:

HEATING SYSTEM = HEAT PUMP (EVEN THOUGH THIS IS NOT CONTROLLING A HEAT PUMP APPLICATION)

HEATING EQUIPMENT = GEOTHERMAL RADIANT

RADIANT STAGES = 1

GEO FORCED AIR = NONE IF COOLING IS NOT USED, COOL ONLY IF THE BACKUP COOLING IS USED.

BACKUP HEAT STAGES = 1

BACKUP HEAT TYPE = ELECTRIC OR GAS/OIL

BACKUP HEAT DROOP = (INSTALLER PREFERENCE, COMFORT OR DROOP) COMFORT WILL RUN THE BACKUP HEAT WITH THE HOT WATER HEAT MORE FREQUENTLY.

DROOP WILL HOLD OFF THE BACKUP HEAT UNLESS THE INDOOR TEMPERATURE DROPS TO THE DROOP SETTING WHILE THE THERMOSTAT IS RUNNING THE

RADIANT HEAT DURING STEADY STATE.

IF THERE IS A HEAT PUMP USED, THE WIRING AND CONFIG SETTINGS WOULD BE DIFFERENT THAN SHOWN IN THIS DIAGRAM.

COMPATIBLE THERMOSTATS:

TH8321WF1001

TH8321R1001 (WIRED AT WALL PLATE OR USED WITH THM5421R1021 EIM)

YTHX9421R5085 PRESTIGE THERMOSTAT KIT (EIM INCLUDED)

MCR37976