Warranty Information
The 2010 standard warranty applies to units ordered on or after July
1, 2010. See Carrier’s 2010 Limited Express Residential Warranty
Certifi cate CA234 for specifi c coverage and limitation.
Carrier residential class heat pumps are backed by a ten-year limited
warranty on all unit parts, including the following accessories when
installed with Carrier units: Flow Controllers & Electric Heaters.
Carrier goes even further to back up its commitment to quality
by including a service labor allowance for the fi rst fi ve years on
refrigeration circuit components and two years on all other parts,
auxiliary heaters and geothermal pumping modules.
The Optional Extended Factory Service Labor Allowance Warranty
offers additional length of term protection to the consumer by
offsetting service labor costs for 10 years.
To order this warranty, contact your Carrier distributor. This coverage
must be purchased within 90 days of unit installation. See Limited
Express Extended Labor Warranty Certifi cate CA235 for details.
Accessories & Warranty
Accessories & Options
Hot Water Mode Option
An optional mode to provide domestic hot water shall be
provided. This mode shall include a factory-installed, internal
secondary heat exchanger and a factory-installed potable
water, bronze circulating pump. This option shall provide an
additional set of water connections for the potable domestic
hot water and shall be completely factory installed and wired.
An external sensor shall be provided to sense the domestic
water storage tank temperature.
Internal Source and Load Pumps / Internal
Expansion Tanks
Optional Source pump(s), Load pump, and expansion tank(s)
shall be factory installed and wired to help lower installation
costs and labor. When installed at the factory, pumps are
controlled by the MPC.
Variable Speed Floor Pump Connection
An optional relay and line voltage lugs shall be provided for a
variable speed radiant fl oor system pump. Some radiant fl oor
systems utilize a variable speed pump on the fl oor system,
which changes fl ow based upon the number of zones open
or closed. Since the pump has built-in controls, only a power
supply is needed.
Cupro-Nickel Heat Exchanger
An optional corrosion resistant CuNi coaxial heat exchanger
shall be factory installed in lieu of standard copper
construction (Source heat exchanger only).
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 [76 l/m]. The Flow Controller
shall provide 1” pump isolation valves/3-way service valves.
Pump heads shall be removable from the volute for easy
replacement. The Flow Controller shall be enclosed in a
polystyrene case and fully insulated with urethane foam to
prevent condensation. The Flow Controller shall have a 5- year
warranty on all parts.
Hose Connection Kit (fi eld installed)
An accessory hose kit shall provide 150psi [1034 kPa] 1”
rubber hose with brass fi ttings equipped with service pressure/
temperature ports for connection between the unit and Flow
Controller.
Carrier Geothermal Heat Pump Systems
50YEW
21
Residential Products Technical Guide
