HAMWORTHY HEATING LTD
5
CHESIL-ELECTRONIC
500001181/K
5.2 Mains Water Connections.
It is a requirement of the Water Supply (Water Fittings) Regulations 1999 that the system is filled using an RPZ
(Reduced Pressure Zone) valve with integral Type BA air gap. Information regarding the application, use and
maintenance requirements for RPZ valves with Type BA air gap is available from WRAS. It is also advisable to
contact the local water utility company to verify notification requirements for the use of these valves.
With the electronic model of Chesil pressurisation unit it is not always necessary to use an RPZ valve for system
filling as the units have a Fill function suitable for small systems to a maximum of 200 litres. Where this fill function
is used it is not necessary to have a quick fill loop using an RPZ valve.
5.3 Expansion Vessels.
System expansion vessels must be constructed to BS4814 or BS6144.
The required expansion vessel size is detailed in the contract documents. If in any doubt contact Hamworthy
Heating Limited for comprehensive system sizing information. Hamworthy Heating Ltd supply the ‘Burstock’ range
of suitable expansion vessels, details are shown below. A calculation sheet which can be used to determine a
suitable volume for an expansion vessel can be found in the Appendix.
Figure 7 - Hamworthy Heating Expansion Vessels—’Burstock’
Note:
25 litre expansion vessels are supplied complete with wall mounting bracket
5.4 Safety Relief Valve.
Must comply with BS6759 part 1, and be sized and installed in accordance with BS6644 & BS7074.
SALES REF NO.
HAMWORTHY PART
NO.
TYPE
TOTAL VOL.
LITRES
CONNECTION
DETAILS
WT
kgs
HOT WATER
APPLICATIONS -
EPDM DIAPHRAGM
(0-100°C MAX)
PV25W (kit)
563605641
VERTICAL
25
G3/4”
4.7
PV60W
5327120094
VERTICAL
60
G1”
14
PV80W
5327120095
VERTICAL
80
G1”
16
PV100W
532712096
VERTICAL
100
G1”
19
PV200W
532712088
VERTICAL
200
G1 1/4”
40
PV300W
532712089
VERTICAL
300
G1 1/4”
54
PV400W
532712090
VERTICAL
400
G1 1/4”
70
PV500W
532712091
VERTICAL
500
G1 1/4”
79
PV800W
532712092
VERTICAL
800
G1 1/2”
195
PV1000W
532712093
VERTICAL
1000
G1 1/2”
228
Содержание 563216020
Страница 2: ......
Страница 31: ...HAMWORTHY HEATING LTD 26 CHESIL ELECTRONIC 500001181 K NOTES...
Страница 32: ...HAMWORTHY HEATING LTD 27 CHESIL ELECTRONIC 500001181 K INSTALLER SITE ADDRESS USEFUL USER INFORMATION...
Страница 33: ......