Heat Controller Water Source Heat Pump - Manual (Page 77)

WattMaster WHP Section 3
Programming 3-29
Setpoint Screen #6
Setpoint Screen #7
Setpoint Screen #8
If the controlling water temperature rises above the Water Hi
Limit setpoint, all heat addition will be removed and one
stage of heat rejection will be activated. If the controlling
water temperature drops below the Water Lo Limit setpoint,
all heat rejection stages will be removed and one heat
addition stage will be activated. An alarm will be generated if
it remains out of limits for the Alarm Delay Time.
WHP Loop Setpoints
Water Hi Limit: xx
°
Water Lo Limit: xx
°
Alarm Delay...: xM
Minimum Default Maximum
Water Hi Limit 0 ° F 120 ° F 120 ° F
Water Lo Limit 0 ° F 0 ° F 120 ° F
Alarm Delay 0 Min 30 Min 120 Min
The Loop Controller can modulate a Variable Speed Pump.
Select the PRESSURE option in place of the CONSTANT
option for variable speed pumping.
The water flow proving can be accomplished by a differential
pressure contact closure or an actual pressure sensor. If you
select Variable Speed Pumping, you must select the
PRESSURE option in place of the CONTACT option for
Flow Proof. WHP Loop Setpoints
Pump Speed: CONSTANT
Flow Proof: CONTACT
Use Left/Right Arrow
There are two methods of Heat Addition control, STEP
HEATING CONTROL or PROPORTIONAL HEATING
The Loop Controller can be configured to maintain Return
Water Temperature ( RETURN WATER CONTROL ) or
the Supply Water Temperature ( SUPPLY WATER
CONTROL ) WHP Loop Setpoints
STEP HEATING CONTROL
RETURN WATER CONTROL
Use Left/Right Arrow