Special Functions; Refrigerant Collecting (Pump Down); System Controll (Fig. 10-1); Information On Rating Plate - Mitsubishi Electric Mr.SLIM PUHZ-RP200 YHA Mode D'emploi

9. Special Functions

A B
E
SW1
X
X
F
A Remote control panel
B Relay circuit
C External input adapter (PAC-SC36NA)
D Outdoor unit control board
E Relay power supply
Fig. 9-1
A B
E
SW2
Y
Y
F
A Remote control panel
B Relay circuit
C External input adapter (PAC-SC36NA)
D Outdoor unit control board
E Relay power supply
Fig. 9-2

9.3. Refrigerant collecting (pump down)

Perform the following procedures to collect the refrigerant when moving the indoor
unit or the outdoor unit.
1 Before collecting the refrigerant, first make sure that the all of the SW5 DIP switches
for function changes on the control board of the outdoor unit are set to OFF. If all of the
SW5 switches are not set to OFF, record the settings and then set all of the switches
to OFF. Start collecting the refrigerant. After moving the unit to a new location and
completing the test run, set the SW5 switches to the previously recorded settings.
2 Supply power (circuit breaker).
* When power is supplied, make sure that "CENTRALLY CONTROLLED" is not
displayed on the remote controller. If "CENTRALLY CONTROLLED" is dis-
played, the refrigerant collecting (pump down) cannot be completed normally.
3 After the liquid stop valve is closed, set the SWP switch on the control board of the
outdoor unit to ON. The compressor (outdoor unit) and ventilators (indoor and
outdoor units) start operating and refrigerant collecting operation begins. LED1
and LED2 on the control board of the outdoor unit are lit.

10. System controll (Fig. 10-1)

E SW 1 - 3 ~ 6
ON
OFF
3 4 5 6
F SW 1 - 3 ~ 6
ON
OFF
3 4 5 6
G SW 1 - 3 ~ 6 ON
OFF
3 4 5 6
A E A F
TB1 TB1
TB4 TB4 TB4
B B B
2
2
TB5 TB5
1
C D
1
Fig. 10-1

11. Information on rating plate

Model
Refrigerant (R410A)
Allowable pressure (Ps)
Net weight
MANUFACTURER: MITSUBISHI ELECTRIC CORPORATION, SHIZUOKA WORKS
18-1, OSHIKA 3-CHOME, SURUGA-KU, SHIZUOKA CITY, JAPAN
C
D
H
1
1
I
2
3
3
J
CNDM
G
F Procure locally
G Max. 10 m
H Orange
I Brown
J Red
C
D
H
1
I
1
2
J
3
3
CNDM
G
F Procure locally
G Max. 10 m
H Orange
I Brown
J Red
A Outdoor unit
B Indoor unit
C Master remote controller
D Subordinate remote controller
E Standard 1:1 (Refrigerant address = 00)
F Simultaneous twin (Refrigerant address = 01)
G Simultaneous triple (Refrigerant address = 02)
A G
TB1
TB4 TB4 TB4
B B B
TB5
kg
kg
9.1. Low noise mode (on-site modification) (Fig. 9-1)
By performing the following modification, operation noise of the outdoor unit can be
reduced by about 3-4 dB.
The low noise mode will be activated when a commercially available timer or the
contact input of an ON/OFF switch is added to the CNDM connector (option) on the
control board of the outdoor unit.
• The ability varies according to the outdoor temperature and conditions, etc.
1 Complete the circuit as shown when using the external input adapter (PAC-
SC36NA). (Option)
2 SW1 ON: Low noise mode
SW1 OFF: Normal operation
9.2. Demand function (on-site modification) (Fig. 9-2)
• It is possible to reduce electricity consumption within a range from 0 to 100 percent
by performing the following on-site installation.
The demand function can be enabled by adding a commercially available input
contact point ON/OFF switch to the CNDM connector (the contact point demand
input, sold separately).
1 Incorporate the "Adaptor for external input (PAC-SC36NA)" into the circuit as shown
in the diagram on the left.
2 By switching SW7-1 and SW7-2 on the control circuit board for the outdoor unit,
the following power consumption restrictions (compared to rated power) can be
set.
SW7-1 SW7-2
Power consumption
when SW2 is on
OFF OFF 0% (STOP)
ON OFF 50%
OFF ON 75%
* Only set the SWP switch (push-button type) to ON if the unit is stopped. How-
ever, even if the unit is stopped and the SWP switch is set to ON less than
three minutes after the compressor stops, the refrigerant collecting operation
cannot be performed. Wait until compressor has been stopped for three min-
utes and then set the SWP switch to ON again.
4 Because the unit automatically stops in about two to three minutes after the refrig-
erant collecting operation (LED1 and LED2 are lit), be sure to quickly close the
gas stop valve. When LED1 and LED2 are lit and the outdoor unit is stopped, open
the liquid stop valve completely, and then repeat step 3 after three minutes have
passed.
* If the refrigerant collecting operation has been completed normally (LED1 and
LED2 are lit), the unit will remain stopped until the power supply is turned off.
5 Turn off the power supply (circuit breaker).
* Note that when the length of the extension piping is long, it may not be possi-
ble to perform a pump-down operation. When performing the pump-down op-
eration, make sure that the low pressure is lowered to near 0 MPa (gauge).
* Set the refrigerant address using the DIP switch of the outdoor unit.
1 Wiring from the Remote Control
This wire is connected to TB5 (terminal board for remote controller) of the indoor unit
(non-polar).
2 When a Different Refrigerant System Grouping is Used.
Up to 16 refrigerant systems can be controlled as one group using the slim MA re-
mote controller.
Note:
In single refrigerant system (twin/triple/quadrople), there is no need of wiring
2.
SW1
Function table
1 Compulsory de-
frosting
<SW1>
SW1
2 Error history clear
function
ON
Refrigerant sys-
3
settings
OFF
tem address set-
4
1 2 3 4 5 6
ting
5
6
RP200, 250
10.5
HP:3.6 MPa (36 bar), LP:2.3 MPa (23 bar)
198
Operation according to switch setting
Function
ON
Start Normal
Clear Normal
Settings for outdoor unit ad-
dresses 0 to 15
OFF
13