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SYNERGY3D INSTALLATION MANUAL
The unit uses an external temperature sensor such as the
lower thermostat in a water heater storage tank to control the
tank temperature. The thermostat should be wired to the unit
P5 connector wires, P5-11 and P5-4 tan wires. When the tank
temperature drops below the thermostat setting the contacts in the
thermostat will close and initiate a signal to the unit to heat water.
A storage tank must be used to store the heated water supplied by
the unit. It is not recommended to send heated water from the unit
directly to the hydronic zones since the unit also has the ability to
condition the space with forced air. There must be adequate storage
capacity in the storage tank to accommodate the hydronic load
while the unit is operating in forced air mode. The hydronic storage
tank should be sized to provide 2 gallons of storage capacity for
every one thousand Btuh’s of nominal heat pump capacity.
Adequate rate of flow (GPM) is very important to system performance
and long term reliability. Follow the guidelines for recommended flow
and pipe sizing in the unit recommendations table.
Be sure to burp the pump. Open the screw 2 turns only in the
end of the pump motor (if Grundfos
®
pumps are used) to allow
trapped air to be discharged and to ensure the motor housing has
been flooded.
The red “courtesy” wires exit out of the top of the tank. The wires
must be connected to the tank thermostat and to P5 tan connector
wires, P5-11 and P5-4 on the main logic board.
Hydronic Section cont.
WaterFurnace Geothermal Storage Tank Thermostat
Synergy3D must be wired to the thermostat screw
terminals. The yellow thermistor wires will not operate
with the Synergy3D as they are used with the NSW Series
water-to-water.
Thermostat
Summary of Contents for Synergy3D
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