Mitsubishi Electric PUHY-RP-Y(S)JM-B, Справочник данных

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CONTROLLER
CONTROLLER 286
I. 1. System component
1-1. System component
OK
NO
CITY MULTI system can be monitored or controlled with signal to/from the outside as every control board of Indoor unit or Outdoor unit has input/output signal
connectors. Independent control to the individual Indoor or Outdoor can be carried out by using these connectors. Yet, for large-scale control, MELANS would be
much easier. When using input/output connectors, a dedicated adapter (optional part) and a relay circuit needed to be prepared by the site.
Following are some typical example.
Table 1-1. Control can be achieved by using Outdoor input/output connectors.
*1 For details, refer to 1) through 4) shown below.
*2 Low noise mode is valid when Dip SW4-4 on the outdoor unit is set to OFF. When DIP SW4-4 is set to ON, 4 levels of on-DEMAND are possible, using different
configurations of low noise mode input and DEMAND input settings.
When 2 or more outdoor units exist in one refrigerant circuit system, 8 levels of on-DEMAND are possible. When 3 outdoor units exist in one refrigerant circuit
system, 12 levels of on-DEMAND are possible.
*3 Low noise mode can be switched from ability main to low noise main with Dip SW5-5 on the outdoor unit. Dip SW5-5 OFF: ability main (ability main mode : The sound pressure level is
reduced by limiting the maximum fan frequency under the following condition. Cooling mode : outdoor temp. (TH6)< 30°C Heating mode : outdoor temp. (TH6) > 3°C), ON: low noise main.
*4 When multiple outdoor units exist in one refrigerant circuit system, settings on every outdoor unit (signal input) are required.
*5 For detailed drawing, refer to "1-2. Outdoor unit input/output connector".
Adapter for external
input
(PAC-SC36NA-E)
Adapter for external
output
(PAC-SC37SA-E)
Option Signal
Using connector
Usage
Prohibiting cooling/heating operation (thermo OFF) by an external input to the
outdoor unit.
* It can be used as the demand control for each refrigerant system.
Performs a low noise operation of the outdoor unit by an external input to the outdoor unit.
* It can be used as the low noise operation device for each refrigerant system.
Forces the outdoor unit to perform a fan operation by receiving signals from the
snow sensor. *4
Cooling/heating operation can be changed by an external input to the outdoor unit.
How to extract signals from the outdoor unit.
* It can be used as an operation status display device.
* It can be used for an interlock operation with external devices.
Function
Demand
Low noise mode
Snow sensor signal input
Auto-changeover
Operation status of the
compressor
Error status
PUHY
CN3D
CN3S
CN3N
CN51
PURY
CN3D
CN3S
-
CN51
1) Table 1-1-1 SW4-4: OFF (Compressor ON/OFF, Low noise mode)
2) When SW4-4 on one outdoor unit in one refrigerant circuit system is set to ON (4 levels of on-DEMAND) (*8)
3) When SW4-4 on the two outdoor units in one refrigerant circuit system is set to ON (8 levels of on-DEMAND) (*8,*9)
CN3D 1-3P
Open
Short-circuit
*6 When SW4-4 on the outdoor unit in one refrigerant circuit system is set to ON (4 levels or 8 levels or 12 levels of on- DEMAND), this function cannot be used.
*7 This function and the 4 levels or 8 levels on-DEMAND function can be used together. Input the order to CN3D 1-2P on the outdoor unit whose SW4-4 is set to OFF.
*8 Input the order to CN3D on the outdoor unit whose SW4-4 is set to ON.
*9 CN3D of No. 1, 2, 3 can be selected arbitrary with the outdoor unit whose SW4-4 is set to ON.
2-level of on-Demand *6
100%(No Demand)
0%
Low noise mode *7
OFF
ON CN3D 1-2P
Open
Short-circuit
CN3D 1-3P
Open
Short-circuit Open
100% (No DEMAND)
0%
1-2P
Open
Short-circuit
1-2P
1-3P
Open
Short-circuit
Open
Short-circuit
100% (No DEMAND)
50%
88%
75% 50%
0%
38%
25% 88%
38%
75%
63% 75%
25%
63%
50%
Short-circuit
75%
50%
CN3D 1-2P
8 levels of on-DEMAND
No.1 CN3D
Note the following steps to be taken when using STEP DEMAND.
Example: When switching from 100% to 50%
Steps in DEMAND
level setting
If the demand settings are switched in the wrong order listed as the
wrong example above, the unit may go into thermo OFF mode.
The percentage of the DEMAND listed in the table above is an
approximate value based on the compressor volume and does not
necessarily correspond with the capacity.
This function and the Low noise mode function cannot be used together.
<WRONG>
<CORRECT>
100%
100%
0%
75%
50%
50%
No.2 CN3D
Open Short-circuit
Open Short-circuit Open Short-circuit
4) When SW4-4 on the all outdoor units in one refrigerant circuit system is set to ON (12 levels of on-DEMAND) (*9)
1-2P
Open
Short-circuit
1-2P
1-3P
1-2P
1-3P
Open
Short-circuit
Open
Short-circuit
100%
67%
92%
84%
67%
34%
59%
50% 92%
59%
84%
75% 84%
50%
75%
67% 67%
34%
59%
50% 34%
0%
25%
17%
59%
25%
50%
42% 50%
17%
42%
34%
12 levels of
on-DEMAND
No.1 CN3D
No.2 CN3D
No.3 CN3D
Short-circuit Open
Open
Open Open Short-circuit Short-circuit
Open Short-circuit Open Short-circuit Open Short-circuit Open Short-circuit
1-2P
Open
Short-circuit
1-2P
1-3P
1-2P
1-3P
Open
Short-circuit
Open
Short-circuit
92%
59%
84%
75% 59%
25%
50%
42% 84%
50%
75%
67% 75%
42%
67%
59% 84%
50%
75%
67% 50%
17%
42%
34% 75%
42%
67%
59% 67%
34%
59%
50%
12 levels of
on-DEMAND
No.1 CN3D
No.2 CN3D
No.3 CN3D
Short-circuit Open
Short-circuit
Open Open Short-circuit Short-circuit
Open Short-circuit Open Short-circuit Open Short-circuit Open Short-circuit
Input
(level-signal)
Output
(level-signal)