Mitsubishi EHST20C-VM2C User Manual

10-6. Checking component parts' function
Part Name Check Points
Water circulation pump (primary circuit)
Water circulation pump (sanitary circuit) Measuretheresistancebetweentheterminalswithatester.
(Windingtemperate20°C)
Terminal Normal (speed 2) Abnormal
L-N 211Ω Open or Short
DHW circulation pump MUST be set to speed 2.
Immersion heater Measuretheresistancebetweentheterminalswithatester.
(Windingtemperate20°C)
Terminal Normal Abnormal
A-B 19.2Ω Open or Short
To reset the immersion heater use a pin or similar to press the reset button lo-
cated on the top of the immersion boss.
Seediagramontheleft.
L
Signal cable
3
3
Power cable
BROWN
PWM input signal
Feedback signal
Signal ref.
BLUE
BROWN
GREEN/
YELLOW
BLUE
BLACK
M
1~
N
0.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
0.0 5.0 10.0 15.0 20.0 25.0 30.0 35.0 40.0
0.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
0.0 5.0 10.0 15.0 20.0 25.0 30.0 35.0 40.0
0.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
0.0 5.0 10.0 15.0 20.0 25.0 30.0 35.0 40.0
L N
M
1~
75
<Water circulation pump (primary circuit) characteristics>
<Recommendedwaterowraterange>
Outdoor heat pump unit Waterowraterange[L/min]
Packagedmodel PUHZ-W50 7.1-14.3
PUHZ-W85 10.0-25.8
PUHZ-W112 14.4-27.7
PUHZ-HW112 14.4-27.7
PUHZ-HW140 17.9-27.7
Split model SUHZ-SW45 7.1-12.9
PUHZ-SW40 7.1-11.8
PUHZ-SW50 7.1-17.2
PUHZ-FRP71 11.5-22.9
PUHZ-SW75 10.2-22.9
PUHZ-SW100 14.4-27.7
PUHZ-SW120 20.1-27.7
PUHZ-SHW80 10.2-22.9
PUHZ-SHW112 14.4-27.7
PUHZ-SHW140 17.9-27.7
PUMY-P112 17.9-27.7
PUMY-P125 17.9-27.7
PUMY-P140 17.9-27.7
Externalstaticpressure[kPa]
Flowrate[L/min]
Speed5(Defaultsetting)
Speed 4
Speed 3
Speed 2
Speed 1
Externalstaticpressure[kPa]
Flowrate[L/min]
Externalstaticpressure[kPa]
Flowrate[L/min]
Speed5(Defaultsetting)
Speed 4
Speed 3
Speed 2
Speed 1
Speed5(Defaultsetting)
Speed 4
Speed 3
Speed 2
Speed 1
E*ST20C series
E*ST20D series
EHPT20X series
OCH570C

Mitsubishi EHST20C-VM2C Specifications

General

Brand	Mitsubishi
Model	EHST20C-VM2C
Category	Heat Pump
Language	English