Mitsubishi Electric CITY MULTI PEFY-P06NMAU-E, Technical & Service Manual

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VII
Microprocessor Control ]
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HWE09040 GB
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
ΠThe 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 DRY 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
ΠFloat 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.
7. Heater control
1. Control specifications and DIP S/W setting
ΠTable 1 shows how the field-installed heater is controlled. Select the desired pattern in the table below, and set the DIP S/W
on the outdoor and indoor units as shown in Table 1. See section 3 "Installation" for details. The table below shows Heater
Control patterns #A and B.
ON
OFF
15sec. 15sec. 15sec. 1min.30sec. 1min.30sec.
Float SW
In the water In the air In the water Error
postponement
Drain pump
abnormal
Table.2
Outdoor unit
setting
Condition of outdoor unit
Duct unit PE/PD/PF-NR(NL)
Î
(PEFY-
P06,08,12,15,18,24,27,30,36,48,
54NMAU-E)
NON duct unit
(PL/PK/PC)
DIP S/W OFF
In the case of:
<TGMU>
S/W5-2 OFF
<THMU>
S/W5-10 OFF
<PUMY>
S/W4-4 OFF
N / A
DIP S/W3-4
OFF
(Indoor unit)
Heater control #A
(defrost/error:
Heater OFF)
Heater control #A
(defrost/error:
Heater ON)
DIP S/W3-4
ON
(Indoor unit)
Heater control #A
(defrost/error:
Heater ON)
DIP S/W ON
In the case of:
<TGMU>
S/W5-2 ON
<THMU>
S/W5-10 ON
<PUMY>
S/W4-4 ON
Normal drive Heater OFF Heater OFF
Defrost drive
H/P drive
H/P stop
DIP S/W3-4
OFF
(Indoor unit)
Heater control #A
(defrost/error:
Heater OFF)
Heater control #B
(defrost/error:
Heater ON)
DIP S/W3-4
ON
(Indoor unit)
Heater control #B
(defrost/error:
Heater ON)
Normal drive
Defrost drive
H/P drive
H/P stop
C
o
ndi
ti
on of
O
/U
㪧㪸㫉㪸㫄㪼㫋㪼㫉㫊㩷
a/b/c/d are set by
㩷
maintenance tool.
a b c d Outdoor temp.