Mitsubishi Electric EHPT20Q-VM2EA Service Manual page 47

10-6. Checking component parts' function
Part Name
Water circulation pump (primary circuit , pump1・A)
Signal cable
3
M
1~
3
Power cable
<Recommended water flow rate range>
Outdoor unit Water flow rate range [L/min]
QUHZ-W40VA
GCH15010
BROWN
PWM input signal
BLUE
Signal ref.
BLACK
Feedback signal
BROWN
L
BLUE
N
GREEN/
YELLOW
3.0 - 8.0
Check Points
<Water circulation pump (primary circuit) characteristics>
Pump speed
Speed 1 Speed 2
160.0
140.0
120.0
100.0
80.0
60.0
40.0
20.0
0.0
0 2
47
Speed 3 Speed 4 Default se ng
4 6 8
Speed 5
10