Mitsubishi Heavy Industries FDUA160AVSAVH Service Manual page 38

(10) Base heater ON/OFF output control (Option)
(a) Base heater ON conditions
When all of following conditions are satisfied, the base heater is turned ON.
・ Outdoor air temperature (detected with Tho-A) is 1ºC or lower.
・ In the heating mode.
・ When the compressor is turned ON.
(b) Base heater OFF conditions
When either one of following conditions is satisfied, the base heater is turned OFF.
・ Outdoor air temperature (detected with Tho-A) is 3ºC or higher.
・ When the compressor stop has been detected for 30 minutes continuously.
・ In the cooling or dehumidifying mode.
Base heater ON
(11) DRED
This air-conditioner complies with the DRED (Demand Response Enabling Devices) standard AS/NZS4755.3.1 and
supports below demand response modes 1, 2, and 3 (DRM1, 2, and 3). Since the air-conditioner limits the electric power
or energy by receiving the DRED input signal, the feeling of cooling operation or heating operation may deteriorate during
that time. The outdoor unit of this air-conditioner is equipped with a terminal block for DRED input and supports ELV
Low Vol tage) complying with AS/NZS60335.1.
In DRED-enabled mode, a small "D" is displayed on the remote control, as shown on the pictures below. When the defrost
cycle becomes active during DRED operation, RC-EX series continue to display the DRED active "D" symbol. However,
the RC-E series does not ; only "DEFROST" is displayed even though DRED mode remains active.
Table AIR-CONDITIONER DEMAND RESPONSE MODES
Demand
response
Description of operation in this mode
mode
(DRM)
DRM1 Compressor off
DRM2 Compressor speed control
DRM3 Compressor speed control
Base heater OFF
1 3
Outdoor air temperature (ºC) [Tho-A]
The air-conditioner continues to cool or heat during the demand
response event, but the electrical energy consumed by the air-
conditioner in a half hour period is not more than 50% of the total
electrical energy that would be consumed if operating at the rated
capacity in a half hour period.
The air-conditioner continues to cool or heat during the demand
response event, but the electrical energy consumed by the air-
conditioner in a half hour period is not more than 75% of the total
electrical energy that would be consumed if operating at the rated
capacity in a half hour period.
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Remark
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'21 • PAC-SM-398
(Extra-