17
2000225294A
Diagram 3.3
FILLING LOOP
12211
TAP (a)
EXTENSION
TAP (b)
EXTENSION
Diagram 3.4
12253
3 Heating System Design
4 (F24e & F28e ONLY) Domestic Hot Water System Design
All domestic hot water circuits, connections, fittings must be in
accordance with the relevant standards and water supply
regulations.
For GB: Refer to the current addition of the Water Regulations
Guide.
For IE: The current edition of I.S.813 "Domestic Gas Installations".
- Copper tubing or plastic Hep
2
0 may be used for the domestic
hot water system. Unnecessary pressure losses should be
avoided.
- Provision shall be made for a drain valve at the lowest point of
the system.
- The boiler will operate with a supply pressure of 0,6 bar, but
under reduced flow rate. In these circumstances the filling loop
will not pressurise the boiler.
Best operating comfort will be obtained from a supply pressure
of 1 bar.
4.1 Hard Water Areas
In areas where the water is 'hard', more than 200mg/litre, it is
recommended that a proprietary scale reducer is fitted in the
cold water supply to the boiler.
(F24e & F28e ONLY)
Control
valve
Flow
Drain
point
Bypass
(if required)
Heating
circuit
Return
Additional
expansion
vessel
(if required)
Boiler
'A'
Diagram 3.2a
10157
TYPE CA
Summary of Contents for EnviroPlus F24e
Page 18: ...18 2000225294A Diagram 5 1 11907 5 Boiler Schematic F24e F28e ONLY ...
Page 19: ...19 2000225294A 5 Boiler Schematic Diagram 5 1a 12248 BYPASS F28e SB ONLY ...
Page 49: ...49 2000225294A 14 Fault Finding 12410 Diagram 14 4 ...
Page 51: ...51 2000225294A 15 Wiring Diagram Diagram 15 1a 12240 F28e SB ONLY ...