Utility Curtailment; Energy Tracking; Factory Installed Options; Heat Recovery Package (Hrp) - Carrier GC Series Installation Instructions Manual

Utility Curtailment

Utility curtailment is a voluntary energy saving program offered
through utility companies in some locations. Utility company will
provide the equipment that allows them to cut back demand on
equipment during peak demand times.
technician should install the device to ensure system compatibility.
Refer to Fig. 14 for typical wiring to the UPM.
To set up curtailment with user interface, enter the service screens,
Setup, then select Utility Curtailment.
There will be 3 options to enable or disable the curtailment:
1. Disabled: the utility curtailment, if wired into the UPM, will
be ignored.
2. *Low Stage: when utility curtailment relay opens, the unit
will only operate at low- -stage.
3. *Off: when utility curtailment relay opens, the unit will
shut down until the utility relay closes.
* There will be a brief delay to cause the unit to stage or shut
down (approximately 0.40 to 1.20 minutes can be expected).
UTILITY RELAY
UTILITY SIGNAL
OPEN RELAY
* SUPPLIED BY UTILITY PROVIDER
Fig. 14 - - Utility Curtailment

Energy Tracking

The Energy Tracking feature is available when unit is used with the
InfinityR Touch Control and EvolutionR Connext Control.
Energy Tracking has the ability to monitor and estimate the energy
consumption of the unit and displays the data on the wall control.
Software version 14.0 or later is required for energy tracking.
The Energy Tracking Kit (KHAGT0101KIT) includes a sensor and
wiring harness. The kit must be installed on the geothermal unit
for energy tracking functionality.
instructions.
NOTE: Version 14.0 or later software is required for energy
tracking.
A qualified HVAC
*
A150166
See kit for installation

FACTORY INSTALLED OPTIONS

A number of factory installed options are available on the GC
Series of Heat Pumps. The following details the purpose, function
and components of each option.

Heat Recovery Package (HRP)

(optional)
The heat recovery package is a factory installed option on GC
series heat pumps. The HRP can be used to heat potable water
during unit operation using waste heat from the compressor
discharge gas. In some cases the HRP can provide most or all of
the hot water requirements for a typical home.
The HRP consists of three major components:
1. Double wall, vented refrigerant to water heat exchanger
2. Circulating pump
3. Control circuit
The heat exchanger is rated for use with potable water and is
acceptable for use as a domestic water heating device in most
building codes.
The pump circulates water between the domestic hot water tank
and HRP heat exchanger in the Heat Pump. The control circuit
ensures that the HRP only operates when there is available heat
from the compressor and when the water is within a safe
temperature range of below 140_F. When the heat pump
compressor operates, the HRP will monitor the temperature of the
discharge gas from the compressor. Once discharge gas is hot
enough to provide useful heat to the domestic water tank, the
circulating pump will be enabled, drawing water from the tank,
through the HRP heat exchanger and then depositing the heated
water back into the tank.
If the water temperature reaches 140_F, the circulating pump is
disabled to prevent over heating of the domestic water. The HRP is
provided with an on/off switch in case the end user desires that the
HRP be inactivated (typically during the winter months when
space heating is most important).
CAUTION
!
UNIT DAMAGE AND/OR OPERATION HAZARD
Failure to follow this caution may result in unit damage
and/or improper equipment operation.
If heat recovery unit is installed in an area where freezing
may occur, the unit must be drained during winter months
to prevent heat exchanger damage. Heat exchanger
ruptures that occur due to freezing will void the heat
recovery package warranty along with the heat pump
warranty.
NOTE: If factory installed HRP is not utilized in the field, it is
recommended to disconnect the HRP switch.
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