Noritz GHQ-C2801WX-FF US, Руководство по установке, Страница: 64 / 84

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Using DHW and Heating at the same time
This Combi Boiler is designed for using DHW and Heating at the same time. Simultaneous operations are not
always available and suitable. It depends on DHW and Heating setting temperatures.
Contact Noritz America for more information about simultaneous use for DHW and Heating. (Phone #: 1-866-
766-7489)
NOTE When the DIP switch #2 is ON, Heating temperature setting is increased up to approximately
30°F during simultaneous operation. Damage caused by increasing Heating temperature is
not covered by the Noritz America Limited Warranty. Check whether for the hydronic heating
appliance and plumbing are acceptable it.
[Simultaneous Operation Flow]
Y
Y N
N
N
N
Y
*1: DHW supply temperature does not fluctuate.
During DHW operation
Heating Distribution Valve Opens
to PHE side fully.
During Heating operation ( T-T ON )
Heating Distribution Valve opens
to Heating side fully.
Heat Demand ON
( T-T ON ) ?
DHW operation stable ?
*1
Y
Simultaneous Operation
Water Flow Sensor detects
0.4 GPM or more ?
DHW Operation &
Heating Distribution Valve
moves to PHE side fully.
= Heating Operation stops (DHW Priority)
*2: It depends on heating setting temperature or
Type of Heating System [I:02_tHS].
Heating supply temperature
<Heating supply temperature
limitation.
*2
Installer Mode (Parameter Settings)