8
FIG. 5 Typical installation - schematic
FIG. 6 Electrical Connections (Schematic)
EXPANSION
VESSEL
COLD WATER
COMBINATION
VALVE
T&P RELIEF
VALVE
TO HOT
OUTLETS
MAINS
WATER
SUPPLY
ISOLATING
VALVE (NOT
SUPPLIED)
TUNDISH
DISCHARGE
PIPE
DRAIN COCK
(NOT SUPPLIED)
PRIMARY
RETURN
PRIMARY
FLOW
ELEMENT /
CONTROLS
HOUSING
INLET
SECONDARY
RETURN
TAPPING (IF
REQUIRED)
BALANCED
COLD WATER
CONNECTION
(IF REQUIRED)
1
GREEN/YELLOW
230V~ MAINS SUPPLY
FROM HYDRO UNIT.
2
1.5mm MIN. CABLE SIZE
GREEN/
YELLOW
BROWN
2
DOUBLE POLE THERMAL
CUT-OUT
A B
BLUE
BLUE
BROWN
SENSOR
TO HYDRO UNIT
TBO6 (TTW)
TBO3 (230V)
Summary of Contents for HWS-1501CSHM3-UK
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