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Carrier
Carrier Indoor & Outdoor Split Geothermal Heat Pumps - Rev.: 08/10/05
52
Accessories & Options
Hot Water Generator (internal) - GT-PX & GT-GS
units only
An optional heat reclaiming desuperheater coil of vented
double-wall copper construction suitable for potable
water shall be provided. The coil and hot water circulating
pump shall be factory mounted inside the unit. A high limit
(GT-PX/GT-GS units) and low compressor discharge line
temperature switch (GT-PX units) shall be provided to
disable the pump when these conditions occur.
Hot Water Generator (fi eld installed) - GT-S units only
An optional heat reclaiming Hot Water Generator
(desuperheater) Remote Module with vented double-wall
copper con struc tion suitable for potable water shall be
provided as a fi eld installed accessory. A high limit shut-off
switch shall be provided. The HWG Remote Module shall be
located remote from the compressor section, near the water
heater, and shall include an internal pump and water coil.
Cupro-Nickel Heat Exchanger
An optional corrosion resistant CuNi coaxial heat
exchanger shall be factory installed in lieu of standard
copper construction.
Thermostat (fi eld in stalled)
A multistage auto-changeover electronic digital
ther mo stat shall be pro vid ed. The thermostat shall offer
2 heating and 1 cooling stages (GT-GS/GT-S units) or 3
heating and 2 cooling stages (GT-PX units) with precise
temperature control. An OFF-HEAT-AUTO-COOL-
EMERG system switch, OFF-AUTO fan switch, and
in di cat ing LED’s shall be provided. The thermostat shall
read out in °F or °C and be calibratable.
Flow Controller (fi eld installed)
A self-contained module shall provide all fl uid pumping,
fi ll and connection requirements for ground-source closed
loop systems up to 20 GPM. The Flow Controller shall
provide 1” pump isolation valves and 3-way service valves.
Pump heads shall be removable from the volute for easy
replacement. The Flow Controller shall be enclosed in
a galvanized steel or plastic case and fully insulated
with urethane foam to prevent condensation. The Flow
Controller shall have a 5-year warranty on all parts.
Hose Kits (fi eld installed) - GT-PX & GT-GS only
A rubber hose kit shall provide connections between the
unit and Flow Controller. Rubber 1” hose allows fl exible
connection and absorbs vibration transmission between
unit and Flow Controller. Brass elbows with MPT fi ttings
for unit connection, barbed fi ttings for hose connection
and FPT fi ttings for Pressure/Temperature ports shall be
included to allow service and troubleshooting of the unit.
Hose clamps shall be used to connect the hose to the
brass elbows and Flow Controller.
Cooling TXV Kit (fi eld installed) - R-22 GT-GS & GT-S
units only
A cooling ther mo stat ic expansion valve kit shall be
provided to be fi eld installed on the A-Coil or at the
air handler.
Warranty Information
The Carrier residential warranty refl ects the reliability
built in to every unit and includes fi ve years on all parts,
and ten years on the compressor and refrigerant circuit
parts with a service labor allowance during the fi rst 30
days. An optional extended warranty is available for
residential units, which adds a labor allowance and trip
charge. See extended warranty
certifi cate (CA186) for details.