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The following paragraphs describe the functionality of
each parameter. For more information on Solar heater
integration and wiring, please refer to section 27,
"Optional Control Outputs", on page 71.
Solar Valve Position Selection (Heat/
Cool Models Only)
To access the "Solar Valve" position selection, press the
SERVICE key again. When the "Solar Heating" option is
enabled, the "Solar Valve" option will appear on the digital
display. The "Solar Valve" option uses the 3-pin terminal
P9 labeled as "SOLAR". Use the UP and DOWN keys
to associate the Solar valve "Position 1" to either "Heat
Pump" or "Solar Heater". For more information about
the solar valve sensor wiring, please refer to section 27,
"Optional Control Outputs", on page 71.
Solar Valve
Pos1 = Heat Pump
Figure 45. Solar Valve Selection
Solar Heater Temperature Limit (Heat/
Cool Models Only)
Press SERVICE again to access the "Solar Delta" setting.
This setting determines the minimum water temperature
delivered by the solar heater to keep the solar 3-way
valve directing flow to the solar heater. Use the UP and
DOWN keys to adjust this parameter from 0°F to 10°F
(0°C to 5.5°C). The default value is 3°F (1.5°C).
When this setting is set to 0°F (0°C), the solar 3-way valve
remains active as long as the water delivered by the solar
heater is not losing heat.
Solar Delta
Solar Delta
Figure 46. Solar Delta Selection
Solar and HPPH Deadband (Heat/Cool
Models Only)
Press SERVICE again to access the "Solar Deadband"
setting. This setting determines the temperature limit
of the heat pump operation while the solar heater is
supplying hot water. Use the UP and DOWN keys to
adjust this parameter from 0°F to 20°F (0°C to 11°C). The
default value is 0°F.
When this setting is set to 0°F, the heat pump operation
remains active until the demand for heat is satisfied. For
example, if the Solar deadband is set to 5°F, the heat
pump keeps heating until the water temperature sensed by
the solar sensor is 5°F or less from the water temperature
setpoint.
APPROVED
3 F
3 F
UNCONTROLLED DOCUMENT IF PRINTED
Solar Deadband
Solar Deadband
Figure 47. Solar Deadband Selection
Solar Heater Retry Time (Heat/Cool
Models Only)
Press SERVICE again to access the "Solar Retry Time"
setting. This setting determines the period of time to
check again the solar heater delivery. Use the UP and
DOWN keys to adjust this parameter from 2 to 4 hours.
The default value is 2-hours.
This setting is used when the solar heater water
temperature is below the solar limit (Solar delta). In this
case, the heat pump controller uses this time to retry
using the solar heater.
Solar Retry Time
Solar Retry Time
Figure 48. Solar Retry Time
For more information on Solar heater integration and
wiring, please refer to section 27, "Optional Control
Outputs", on page 71.
Auxiliary Input
Press the SERVICE key once again to access the
"Auxiliary Input" menu, where you can enable and choose
the functionality of an optional Auxiliary input. By default,
this feature is disabled. Use the UP and DOWN keys to
select from the following options:
• Disabled: The input is disregarded.
• Warning: The Fault "Aux Input Warning" is shown in
the LCD and Raymote if the auxiliary input in terminal
P11 is open. The unit continues its operation, but the
fault is reported and recorded in the fault history.
• Interlock: The Fault/interlock "Aux Input Fault" is
displayed in the LCD and Raymote. The operation of
the heater is prevented or terminated until Input P11
is closed again.
Auxiliary Input
Figure 49. Auxiliary Input
For more information about the Auxiliary input wiring,
please refer to section 27, "Optional Control Outputs", on
page 71.
0 F
0 F
2 Hours
2 Hours
Disabled
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