FIXING JIG THEMA F 23 E

From left to right, the fixing jig comprises: A -Heating return with isolating valve ( m ). B -Cold water inlet with isolating valve ( p ). C -Heating flow with isolating valve ( q ),drain screw (
5555 r ) and safety valve ( s ).

23113

D -Domestic hot water out. E -Gas service cock.

34

57,557,5

25 33

m 1235674 p r A q B s C

Pla 105c

D E

Filters and washers : 1-Washer 2-Metal filter 3-Flow regulator 4-Plastic filter 5, 6 & 7-Washers

THEMA F SB 18 THEMA F SB 23 E

From left to right, the fixing jig comprises: A -Heating return with isolating valve ( m ). C -Heating flow with isolating valve ( q ),drain screw ( r ) and safety valve ( s ). E -Gas service cock.

23113 25

115110

23

m 1257 rp A q s

Pla 116b

C E

Diagram 5

DOMESTIC HOT WATER SYSTEM DESIGN

•Copper tubing or plastic Hep
2 O may be usedfor the domestic hot water system. Unnecessary pressure losses should be avoided.•The boiler may operate with a minimum supplypressure of 0,3 bar but under a reduced flow rate. Optimum performance will be obtained from a supply pressure of 1 bar.•The flow restrictor must be fitted in the cold wa-ter inlet during installation. This limits the flow through the boiler to a maximum of 12 l/min. 7