Airwell PAC HT Series Engineering Data Manual - Page 7
Browse online or download pdf Engineering Data Manual for Heat Pump Airwell PAC HT Series. Airwell PAC HT Series 20 pages. High temperature air-to-water heat pumps
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General Hydraulic Layout for a Type 2 (*) Installation
1
Stop valve
2
Buffer tank (optional)
3
Filter or sludge trap
4
Relief valve
5
3-way valve - Domestic hot water
6
Domestic hot water tank
7
Safety devices
8
Recycling circulating pump (optional)
9
Circulation pump
Layout 2 :
This layout is recommended for heating installations with wide operating water flow variations (radiator thermostatic valves present in the system). We strongly
recommend including the buffer tank
thermostatic valves are closed.
The flow adjustment valve
(11)
is used to balance the flow in heating mode and domestic hot water mode to always ensure optimum PAC HT operation.
HW
1
1
6
5
1
11
3
1
1
12
(2)
as it guarantees that the heating loop capacity is higher than the minimum volume when the maximum number of
1
8
3
7
CW
1
14
1
13
9
4
1
1
2
11
Flow regulating valve
12
Expansion tank
13
In-line heater
14
Bleed
15
Safety valve
HW : Hot Water
CW : Cold Water
*
Installation components not supplied
15
1
7