4
Checklist
Before commencing installation check that all the components for your Andrews water heater are contained in the
package. The following components are supplied as standard:
Table 1: Cold water inlet control kit (as below, depending on model)
Commercial
cylinder
volume (ltr)
Pressure reducing valve
Pressure relief valve
Single check
valve
400 - 500
1” Integrated inlet control valve
800
1.25” (1.5 - 6 bar) or (5 -10 bar)
1” x 1.25” (8 bar) or (13 bar)
1.25”
1000
1.25” (1.5 - 6 bar) or (5 -10 bar)
1” x 1.25” (8 bar) or (13 bar)
1.25”
1250 - 1450
1.5” (1.5 - 6 bar) or (5 -10 bar)
1” x 1.25” (8 bar) or (13 bar)
1.5”
2000 - 2500
2” (1.5 - 6 bar) or (5 -10 bar)
1.25” x 1.5” (8 bar) or (13 bar)
2”
Table 2: Expansion vessel (as below)
Commercial cylinder
volume (ltr)
Expansion vessel
size (ltr)
Mounting kit
Weights
400 - 500
60
Floor mounted
12kg
800
100
Floor mounted
17kg
1000 - 1250
150
Floor mounted
24kg
1450
200
Floor mounted
38.5kg
2000 - 2500
300
Floor mounted
41kg
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Factory fitted temperature & pressure relief valve, set at 90ºC / 1 MPa (10bar) or factory fitted temperature &
Pressure relief valve set at 90ºC / 1.5MPa (15bar) depending on model.
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Connection size 1 1/4”BSP to cylinder, 28mm compression fitting out.
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Tundish 1 1/4” inlet/ 1 1/2” outlet
`
Thermostat and thermal cut-out combined
`
Isolating valve (1”, 1.25”, 1.5” or 2”) depending on model
`
1” drain valve
`
2-port motorised valve
`
All connections BSP female
Notes:
1” Integrated inlet control valve is not assembled.
