Owner Manual

The unit is equipped with a normally closed (N/C) float switch, factory installed in the unit’s
internal drain pan. If the condensate line clogs, the float switch will be activated, shutting the
compressor down and a RED light labeled “CONDENSATE FAULT” will be illuminated on the
LED board. As soon as the pan drains, the light will go off and the compressor will be allowed to
come back on.
11.2 DHW Option
On equipped units, the DHW pump will not be energized until the unit’s compressor has been
operational for 5 minutes. The pump will shut off anytime the tank reaches 135 °F.
11.3 Water Flow Control
The Dallas board is equipped to control either a loop pump/flow center for closed loop
applications or a 24Vac water valve for open loop applications. A 230Vac fused terminal strip is
provided for loop pumps and a 24Vac 3 position terminal strip is provided for water valves
(common, N/O, & N/C).
11.4 Thermostat selection
The Dallas board is set up to accept any 24Vac “relay” type heat pump thermostat (up to 3
heat / 2 cool, depending on options) which will be wired directly to the removable, labeled Dallas
board plug. (See image below)
11.5 LED indicator
On the front post of the Geocool unit, there is an LED indicator which relays unit information to
the homeowner or technician. The board has a BLUE light for unit power, a GREEN light to
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