Intergas XTREME 36 - Boiler with Heat Pump Boiler

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A
B
C
D
E
F
A. Heat pump
B. Boiler
C. Switch valve
D. Cold water inlet
E. DHW temperature of heat pump
F. DHW temperature of domestic hot water
Connection diagram of boiler with heat pump boiler
Installation:
The combination must be connected according to the
connection diagram. The following points are important to
guarantee a correct operation of the combination.
Thermostatic switch valve:
The thermostatic switch valve used is a modified valve that
meets the specific requirements to which the combination
heat pump boiler and Intergas Xtremeare subject. For the
correct operation of the combination, the switch valve has a
fixed temperature setting. The thermostatic switch valve can be
ordered from Intergas (item no: 065127).
6.2.2 Boiler with heat pump boiler
The boiler is suitable for use in combination with a heat pump
boiler.
If the exhaust temperature of a heat pump boiler is lower than
55°C, the Intergas Xtrememakes sure that the domestic hot
water from the heat pump boiler is post-heated under HE
conditions.
Operational principle:
The domestic hot water connection of the heat pump boiler
is connected to the mix input of the thermostatic switch valve
(see the principle diagram). If the DHW temperature of the
boiler is higher than the set temperature of the switch valve,
the heat pump boiler will be tapped. Because the switch valve
is not fully closing, a small amount will also run through the
Intergas Xtreme(about 10% of the total flow).
As soon as the exhaust temperature of the heat pump boiler
becomes lower than the set temperature of the switch valve,
the flow through the Intergas Xtremewill increase. If the flow
becomes greater than the domestic hot water threshold of
the Intergas Xtreme, the boiler will start domestic hot water
demand.
When the exhaust temperature of the heat pump boiler has
become lower than the set temperature of the switch valve
minus 12K, almost the entire domestic hot water flow goes
through the Intergas Xtreme. The small leakage flow is now
taken from the heat pump boiler. Aer the entire switching of
the switch valve, the domestic hot water flow will be limited by
the Intergas Xtreme.