© JBG-HT (v.2.0)
15
SERVICE MANUAL
– HEAT PUMP
Start
: selection of the probe to which SetPoint
applies during startup
Run delay
: Transition delay from adjustment start
mode to operation mode
Run
: selection of the probe to which SetPoint applies
during operation
Fixed Req
: set control value for the circulation pump
expressed in percentage (if the control type is Fixed
Speed)
Min
: minimum value of circulation pump control for
automatic control
Max
: maximum value of circulation pump control for
automatic control
User Pump Start
: operation mode of the circulation
pump
•
ALWAYS ON – always on
•
ON UNIT ON – when the heat pump is on
•
ON REQUEST – when there is a requirement
for heating
User Req. Thrsh
: threshold for starting the circulation
pump in ON REQUEST mode
Startup
: The time after startup when the lack of flow
is not treated as an error
Running
: time duration of absence of flow, which will
trigger the first alarm
Alarm stop
: time duration of absence of flow after the
first alarm appears, which will turn off the circulation
pump
Regulation type
: type of the circulation pump reg-
ulation:
•
Delta Temperature – request to maintain a
constant difference in supply and return tem-
peratures, additionally controlling the value of
the condensation temperature (when neces-
sary condensation control has priority)
•
Fixed Speed – constant flow speed
•
Evap/Cond Pressure – operation of the circu-
lating pump that maintains the set evapora-
tion/condensation temperature
Set
: ambient temperature below which the circulating
pump will engage an emergency start at maximum
speed
Diff.
: temperature difference by which the ambient
temperature must rise to deactivate the emergency
start mode of the circulation pump
Summary of Contents for ZHHS-01-10K-R290-V5-M
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