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Mitsubishi Electric PAC-SA88HA-E User & Installation Manual page 2

Air-conditioners for building application multiple remote controller adapter
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4. Locally Procured Parts
All parts other than the Multiple Remote Controller Adapter are procured locally.
The items required will depend on the connection method. Refer to the example of use shown below.
(Example)
1 Switch .................. Single pole, single action switch.
CAUTION
2 Relay ................... Use relays that meet the following specifications.
3 Transit relay ......... When the wiring work as described in
4 Control cable ....... The length of the electrical wiring for the PAC-SA88HA-E is 2 meters (6-1/2 ft).
1. Wiring should be covered by insulation tube with supplementary insulation.
CAUTION
2. Use relays or switches with IEC or equivalent standard.
3. The electric strength between accessible parts and control circuit should have 2750 V or more.
5. Locally Procured Wiring
Basic connection methods for following models are shown below as examples.
For details, refer to the CITY MULTI DATA BOOK, Electrical Wiring Diagram etc.
Indoor unit "-E" type input/output connector (CITY MULTI series)
1 Input (CN51)
Distant control board
Relay circuit
SW
Power
supply of
relay
L
1
Y
L
2
Z
SW: Distant ON/OFF switch
L1: Status lamp
L2: Error lamp
X: Relay (a point of contact, fixed DC1 mA)
Y, Z: Relay Contact rating voltage ≥ 15 VDC
Contact rating current ≥ 0.1 A
Minimum applicable load ≤ DC1 mA
Input (CN52)
2
Distant control board
Relay circuit
Power
supply of
relay
SW1
Since this is not used, be sure to completely wrap
with insulation tape.
SW1: Demand switch
X: Relay (coil ≤ 0.9 W, 12 VDC)
SW1 Indoor unit
ON
Forced thermo-OFF
OFF
Normal running
6. Wiring Restrictions
Keep the length of the cable connecting to the circuit board of the indoor unit shorter than 10 meters (32 ft).
Longer than 10 meters (32 ft) could cause improper operation.
Use a transit relay when extending wiring such as remote wiring.
When using a polarized relay (such as a relay with a diode), connect the relay in the correct polarity to avoid damage to the indoor unit circuit
board.
Select a part with contacts for extremely low amperage.
5 or 12 VDC is used at the contact points for the switch so there is a load of only approximately 1 mA.
Improper switch selection could cause improper operation.
Operation coil
Rated voltage: 12 VDC
Power consumption: 0.9 W or less
* Use the diode that is recommended by the relay manufacturer at both ends of the relay coil.
To extend this length, use sheathed 2-core cable. Don't extend the cable more than 10 meters (32 ft).
Control cable type: CVV, CVS, CPEV or equivalent
Cable size: 0.5 mm
Adapter
Indoor unit
control board
1
X
2
X
3
Z
Y
4
5
Maximum cable length is 10 m (32 ft.)
* Every time the SW is pushed (the pulse
is inputted), it reacts against ON/OFF.
Indoor unit
Adapter
control board
1
2
3
X
4
5
X
Maximum cable length is
10 m (32 ft.)
HEAD OFFICE: TOKYO BLDG. , 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN
Authorized representative in EU: MITSUBISHI ELECTRIC EUROPE B.V.
6. Wiring Restrictions
~ 1.25 mm
(16 to 22 AWG)
2
2
• ON/OFF (Pulse) input specification
Item
Input signal
CN51
Standard of pulse
Output (CN52)
3
Distant control board
Power
CN52
supply of
relay
Since this is not used, be sure to completely wrap
with insulation tape.
L1: St atus lamp
Fan motor output (SW1-5 OFF)
Thermostat ON (SW1-5 ON)
L2: Cooling/Dry status lamp
L3: Heating status lamp
X, Y, Z: Relay (Coil with fixed 12 VDC, a power consumption of 0.9 W or less)
HARMAN HOUSE, 1 GEORGE STREET, UXBRIDGE, MIDDLESEX UB8 1QQ, U.K.
is required, this relay is used.
Polarity (output terminal)
No.
Color
1
Brown
2
Red
3
Orange
4
Yellow
5
Green
Description
Pulse sign (Normally open)
200 ms
or more
Relay circuit
L
1
X
Z
Y
X
L
2
Y
L
3
Z
CN51
CN52
+
-
+
-
-
-
-
200 ms
or more
Indoor unit
Adapter
control board
1
CN52
2
3
4
5
Maximum cable length is
10 m (32 ft.)
WT02522X04

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