Proliphix IMT550c Configuration Manual page 50

CHAPTER 2: Configuring the Thermostat Using the Web Interface
Table 2-8 Advanced Settings Fields - HVAC Field Descriptions (Continued)
Field
If Your HVAC System is a Heat Pump
Reverse Valve Polarity
Auxiliary Heat
Heat Control
Second Stage Offset
2-30
Beta Draft Confidential
Description
Enables you to control the direction of the heating and cooling
modes.
O - Reverse for Cool – Indicates that the heat pump
normally runs in heat mode and when the reversing valve is
activated then the heat pump will run in cooling mode.
B - Reverse for Heat – Indicates that the heat pump
normally runs in cool mode and when the reversing valve is
activated then the heat pump will run in heating mode.
Specifies a secondary source of heat outside the heat pump
system, for example, electric baseboard or a gas furnace.
Note: In a dual stage heat pump, Auxilliary Heat is available
only after the 2nd stage is active.
Disabled – Disables Auxiliary Heat.
Enabled – Auxilliary Heat can be used while the heat pump
compressor is active.
Enabled without Compressor – Disables the compressor
when Auxiliary Heat is active.
Specifies the HVAC control of this thermostat. This parameter
describes the thermostat's capability to control a heat pump
system. The thermostat can also be disabled from controlling a
heating system and instead operate as a cool-only thermostat.
Disabled – Specifies that there is no heating system present.
(A/C only thermostat.)
1H – Enables the heat pump as a standard single stage
heating system.
2H (default) – Enables the heat pump as a dual stage heating
system. There are two separate compressor wires from the
heat pump connected to the thermostat.
This parameter is only enabled when 2H Heat Control is
selected, otherwise it is disabled.
0,-1, -2, -3, -4, -5, -6°F
(0,-.25,-.5,-.75,-1,-1.25,-1.5,-1.75,-2,-2.25,-2.5,-2.75,-3,-3.25,-3.
5°C)
Internet Managed Thermostat Configuration Guide, Release 1.0
Part No. 600-03001-550, Rev. 1