Hitachi RWM-(H)FSN3E, Руководство по обслуживанию

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5 Control system
SMGB0070 rev. 1 - 08/2011
154
DHW second cycle wait time
This defines the minimum time between two consecutive domestic hot water heat pump cycles.
Sanitary Water will not start if:
- Sanitary Water Off Time <
CDHW
(3-028)
Heater Start-Up by T
DHWON
(High Demand Differential) is not limited by this function.
Sanitary Water start-up by T
HPON
& T
HPOFF
is limited and therefore the Sanitary Water mode, including heater, will not start
at all by means of this function when timer has not passed.
Sanitary Water Off Time starts being counted after last Sanitary Water Heat Pump operation.
CODE REF Description Default Value Range Steps Units
3-028 C
DHW
Cycle DHW time 1 0~24 1 hour
3-026
3-027 3-028
1
0
1
0
Time
Hot water
request
DHW operation
Request
No request
ON
OFF
DHW electric heater wait time
If Heat Pump cannot offer sufficient capacity it will be necessary to start Heater in order to supply additional capacity.
Heater will start if:
- Heat Pump DHW Operation Time > DHW
EH
(3-029)
Heat Pump will not stop if heat pump stoppage conditions are not met. For example, stoppage by T
DHWMAX
control or T
HPOFF
.
CODE REF Description Default Value Range Steps Units
3-029 DHW
EH
EH wait time 45 0~60 1 min
3-029
1
0
1
0
1
0
Hot water
request
DHW operation
Heater operation
Time
Request
No request
ON
OFF
ON
OFF