Mitsubishi Electric EHPT20Q-VM2EA Service Manual page 9

6-1-2 Electrical Connection
Breaker abbreviation Meaning
ECB Earth leakage circuit breaker for booster heater
TB1 Terminal block 1
TB2 Terminal block 2
⑥
⑦ ① ②
⑦ ① ②⑥
TB1
ECB
GCH15010
④③ ⑤
④③ ⑤
and run wires shown as
e a r t h
TB2
cable longer than
① ②
ECB
CAUTION
-
This product contains
-
electrically grounded / earthed in order to discharge any possible static elec-
The outdoor unit can only be powered via Cylinder unit.
left
① 〜 ⑦
Locally supplied wiring should be inserted through the inlets situated on the
A
Wiring should be fed down the left hand side of the control and electrical box
B
C
control board
③
④
⑤
cable
⑥
D
cable
①
Connect the outdoor unit – cylinder unit connecting cable to TB2 ...②
E
②
Connect the power cable for the booster heater to ECB ...⑦
cable for Booster heater
⑦
n completion of wiring, ensure main controller cable is connected to
the relay connector
WARNING
When confirming the operation of the ECB, make sure that the ECB can
be turned ON/OFF by the power lever before pressing the test button.
If the ECB cannot be turned ON/OFF by the power lever, stop using the
ECB and replace it.
9
terminals as indicated in the figures to the
...①
unit cable
*1
ensure you are
on the