8
Fig 4.
Fig 5.
2
1
N
4
HFT UNIT
INTERNAL
EARTH
CLIENTS
EARTH
CONNECTION
E
1 AND 2
BREAK
ON RISE
1 AND 4
MAKE
ON RISE
CLIENTS
NEUTRAL
CONNECTION
CLIENTS
CONTROL
CONNECTIONS
HFT SERIES THERMOSTAT WIRING DIAGRAM
HEATER
ELEMENT
L
N
HEATER UNIT
INTERNAL
EARTH
SINGLE PHASE STW SERIES
HEATER WIRING DIAGRAM
CLIENTS INCOMING
SINGLE PHASE &
EARTH SUPPLY
L
N
E
HEATER UNIT
EXTERNAL
EARTH
E
CLIENTS
BONDING
CONNECTION
