Heater Control - Mitsubishi Electric PEAD Series Service Manual

HEATER CONTROL

9. HEATER CONTROL
9-1. CAUTIONS RERATED TO HEATER
• Exercise caution when using any auxiliary heat source and follow all third party manufacturer instructions and safety
guidelines for installation and usage.
• Any auxiliary heat source connected to this unit via the CN24 connection must have an independent temperature control
mechanism. Failure to install and maintain such temperature control mechanism may void the warranty for this unit.
• Mitsubishi Electric shall not bear any warranty obligation or other liability for any damage or loss in connection with such third
party auxiliary heaters.
9-2. CONTROL SPECIFICATIONS AND FUNCTION SETTING
• Table 1 shows the mode setting for the field-installed heater.
Table. 1 [Function Table]
Select unit numbers 01 to 03 or all units (AL [wired remote controller] / 07 [IR wireless remote controller])
Mode (function ) No.
Wired remote controller
(RF thermostat)
11 (111) 23 (123)
1 1
2 1
2 2
*1 Heater will not operate during all error modes. Heater will only operate during a communication error between indoor
unit and outdoor unit.
HWE2109A
Factory Setting Mode
●
Heater Available
-
Disable heater
during
Defrost and
Error
Heater Available
-
Enable heater
and fan
during Defrost
and Error *1
29
Heater Heater
Operation Operation
In Error During Defrost
No Heater Present
OFF OFF
ON ON
Fan Control
When
Heater ON
High
High