Mitsubishi Electric EHGT17D-YM9ED Service Manual page 92

DISASSEMBLY PROCEDURE
21. How to remove the flow sensor
(1) Remove the water pump assy. (Refer to Procedure 14.)
(2) Remove the flow sensor (the 2 fasteners and the 2 O-rings
in front and back of the flow sensor). (Photo 21)
<Details of lead wire routing/ fixing and the connection to the connector>
PASS YELLOW/GREEN LEAD WIRE
OF SANITARY SIDE PUMP
THRU WIRE CLIP.
CONNECT LEAD ASSY
PRIMARY SIDE PUMP (CONTROL) /
FLOW SENSOR /
PRESSURE SENSOR(10PIN:WHITE).
PIN ARRANGEMENT
FIX LEAD ASSY BOOSTER HEATER /
PRIMARY SIDE PUMP (POWER),
LEAD ASSY BRINE PUMP,
LEAD ASSY PRIMARY SIDE PUMP (CONTROL) /
FLOW SENSOR/ PRESSURE SENSOR,
SANITARY SIDE PUMP LEAD WIRES AND
CABLE ASSY (3-WAY VALVE) WITH CLAMP.
CONNECT LEAD ASSY COMP
(3PIN:WHITE).
PIN ARRANGEMENT
CONNECT
LEAD ASSY REACTOR
(6PIN:BLACK).
PIN ARRANGEMENT
CONNECT LEAD ASSY THERMISTOR
(16PIN:WHITE).
PIN ARRANGEMENT
CONNECT LEAD ASSY LEV-A / FLOW SW /
HP SW (9PIN:WHITE).
PIN ARRANGEMENT
FIX LEAD ASSY BRINE PUMP,
LEAD ASSY COMP,
AND LEAD ASSY REACTOR
WITH CLAMPS(2 PLACES).
OCH722A
FIX
"SANITARY SIDE PUMP LEAD WIRES",
"BROWN, BLUE AND YELLOW/GREEN LEAD WIRES
OF LEAD ASSY BOOSTER HEATER"
AND "BLACK LEAD WIRE OF LEAD ASSY CNS"
WITH CLAMP.
PHOTOS/ FIGURES
Photo 21
Water pump assy
Fasteners
O-rings
Flow sensor
Pump stay
Z
PASS SANITARY SIDE PUMP LEAD WIRES
THRU WIRE CLIPS(2 PLACES).
PASS
CABLE ASSY(3-WAY VALVE)
AND SANITARY SIDE PUMP LEAD WIRES
THRU WIRE CLIP.
CONNECT LEAD ASSY BOOSTER HEATER /
PRIMARY SIDE PUMP (POWER)
(12PIN:WHITE).
PIN ARRANGEMENT
PASS THERMISTOR THW5A / THW5B
AND THERMISTOR TH7
THRU WIRE CLIP.
CONNECT LEAD ASSY BRINE PUMP
Z
(8PIN:WHITE).
PIN ARRANGEMENT
PASS LEAD WIRES OF
SANITARY SIDE PUMP THRU BACK OF PIPE.
FIX LEAD ASSY LEV-A / FLOW SW / HP SW,
LEAD ASSY PRIMARY SIDE PUMP (CONTROL) /
FLOW SENSOR / PRESSURE SENSOR
CABLE ASSY(3-WAY VALVE)
AND SANITARY SIDE LEAD WIRES WITH CLAMP.
FIX LEAD ASSY LEV-A / FLOW SW / HP SW,
LEAD ASSY PRIMARY SIDE PUMP (CONTROL) /
FLOW SENSOR / PRESSURE SENSOR
AND CABLE ASSY(3-WAY VALVE) WITH CLAMP.
FIX LEAD ASSY BOOSTER HEATER /
PRIMARY SIDE PUMP (POWER) WITH CLAMPS(2 PLACES).
FIX
CABLE ASSY(3-WAY VALVE)
WITH CLAMP.
BAND POSITION
92
Z-Z
UNIT FRONT