andrews Flexistor 1000, Installation Manual

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4
Checklist (if purchased through Heatrae Sadia)
Before commencing installation check that all the components for your Andrews Flexistor unit are
contained in the package. The following components are supplied as standard with your Andrews
Flexistor unit:
Commercial Cylinder Vol-
ume (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 1: Cold Water Inlet Control Kit (depending on model)
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 Mouinted 38.5kg
2000 - 2500 300 Floor Mounted 41kg
Table 2: Expansion Vessel Sizing
• Factory fitted Temperature & Pressure Relief Valve, set at 90ºC / 1 MPa (10bar) or factory fit -
ted Temperature & Pressure Relief valve set at 90ºC / 1.5MPa (15bar) Depending on model.
Connection size 1 1/4”BSP male to cylinder and 1 1/4” BSP female outlet.
• Tundish 1 1/4” inlet, 1 1/2” outlet
• Isolating Valve (2”)
• 1” Drain Valve.
• All connections BSP female.
Notes:
1” Integrated inlet control valve is not assembled.