When Unit Is Stopped Control Mode; Heater Control - Mitsubishi Electric CITY MULTI PEFY-P06NMAU-E4 Technical & Service Manual

[ VII Microprocessor Control ]
4. Heat mode
(1) Same control as heat operation
The value "3°F" is modifiable from 1.8°F to 9°F by maintenance tool.

6. When unit is stopped control mode

1. Drain pump
(1) Drain pump control
The drain pump turns ON for the specified amount of time when any of the following conditions is met:
1) ON for 3 minutes after the operation mode is switched from Cool or Drying to another operation mode (Fan).
2) ON for 6 minutes after the float switch is submerged in the water when the float switch control judges the sensor is in the water.
(2) Float switch control
Float switch control judges whether the sensor is in the air or in the water by turning the float switch ON/OFF.
In the water : Detected that the float switch is ON for 15 seconds.
In the air : Detected that the float switch is OFF for 15 seconds.
Float SW
ON
OFF

7. Heater control

1. Control specifications and DIP S/W setting
Table 1 shows the function settings the field-installed heater. Select the desired pattern in the table below, and set the DIP
SW on the outdoor and indoor units as shown in Table 1.
Table.1
Outdoor unit
setting
DIP S/W OFF
*3
DIP S/W ON
*3
a
maintenance tool.
*1 Default settings: SW3-2 OFF, SW3-4 OFF
*2 Heater will not operate during all error modes.
*3 Please set function codes that are shown on outdoor unit service manuals (DIP S/W Functions).
*4 Heater On signal can not be output in the following cases for safety reasons.
- Return air temperature sensor fault (Error code: 5101)
- Indoor unit fan operation error (Error code: 4109)
- Indoor unit fan motor error (Error code: 4114)
- Transmission error (Error code: 6***, 7***)
- When heating mode is prohibited
- When demand control or capacity save is set to 0%
- During refrigerant recovery mode on PUMY system
- For a few minutes when change from thermo OFF to ON or ON to OFF in R2/WR2 system
HWE20150
15sec. 15sec.
In the water In the air
Condition of outdoor unit
N / A
Normal drive
Defrost drive
H/P drive
H/P stop
b c d Outdoor temp.
a/b/c/d are set by
15sec. 1min.30sec. 1min.30sec.
In the water Error
postponement
DIP S/W
(Indoor unit)*1
SW3-2 SW3-4
OFF -
ON OFF
ON ON
OFF -
ON OFF
Normal drive
ON ON
OFF -
Defrost drive
ON OFF
H/P drive
H/P stop
ON ON
- 19 -
Drain pump
abnormal
PEFY-P-NMAU-E4
Heater control
Pattern Defrost Error
Heater not Available
Heater
OFF OFF
Available
Heater
ON ON*2
Available
Heater not Available
Heater
OFF OFF
Available
Heater
ON ON*2
Available
Heater not Available
Heater
OFF OFF
Available
Heater
ON ON*2
Available
GB