Mitsubishi Electric e Series Service Handbook page 104

[ VII Control ]
(8) Setting the drain pan heater signal output condition
A temperature at which the signal output to operate drain pan heaters can be selected.
Drain pan heater signal output condition
The following condition is met.
The outdoor temperature drops below a set outdoor temperature.
The drain pan signal is output from K63-K64.
Drain pan heater signal output stop condition
The following condition is met.
The outdoor temperature is at or above a set outdoor temperature +2ºC.
Set the dip switches on the circuit board as follows to make the settings for the items described in this section.
Press the push switch SWP3 to enable the configuration changes.
Press the push switches SWP1 (↑) or SWP2 (↓) to increase or decrease the value.
When the desired value is displayed, press SWP3 to save the setting value.
Settings table
Dip switch setting (SW1)
No.
■:ON □:OFF
1 0 0 0 0 1 1
HWE1417B
Setting Item
0 1 0 1 Drain pan heater operation outdoor temp
Initial
Unit
value
Increments
0 ºC 1ºC
- 95 -
Setting Setting change from
an optional remote
controller
Lower Upper
(PAR-W21MAA
limit limit
or PAR-W31MAA)
-40 20 Not possible
GB