HEATING CONNECTION
The HeatMaster has two connections at the rear that can be used to connect a central heating circuit. Connecting a heating system may reduce the domestic hot water performance.
Expansion
The HM 60 is fitted with an 8 litre expansion vessel. HM 70/100 models are fitted with two 10 litre expansion vessels, and the HM 150 Jumbo is fitted with four 8 litre expansion vessels. These expansion vessels are sized for hot water operation only. If a heating system is connected to the primary circuit, calculate the expansion capacity necessary for the total volume of the heating system. (Refer
to the technical instructions from a relevant manufacturer of expansion vessels).
Example of a single circuit connection
1.
2.Heating pump
3.
4.Isolating valves
5.Safety valve set to 3 bar with pressure gauge
6.Expansion vessel
7.Drain cock
8.Controller
8
1 2 3 4
| 5 |
4 | 6 |
| |
| 7 |
WARNING
The pimary safety valve is supplied with a plastic tube connected to the discharge outlet - this is for test purposes only and should be removed. The safety valve should be connected to a drain using a metallic pipe eg. copper.
INSTALLATION
OIL SUPPLY CONNECTIONS - ACV BM BURNERS
(If another make of buner is fitted please refer to that manufacturers technical manual)
Installation without return
max 4m | H |
|
|
| |
| L1 |
|
| L (m) | (L = H + L1) |
H (m) | Ø int. 8 mm | Ø int. 10 mm |
0.5 | 10 | 20 |
1 | 20 | 40 |
1.5 | 40 | 80 |
2 | 60 | 100 |
Installation with return
L1
H
max 4m
H
L1
| L (m) | (L = H + L1) |
H (m) | Ø int. 8 mm | Ø int. 10 mm |
0 | 35 | 100 |
0.5 | 30 | 100 |
1 | 25 | 100 |
1.5 | 20 | 90 |
2 | 15 | 70 |
2 | 8 | 30 |
3.5 | 6 | 20 |
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