Mitsubishi Heavy Industries FDUA160AVSAVH Service Manual page 116

④ ④
Wirings Wirings
a) Connecting of indoor unit and relay parts a) Connecting of indoor unit and relay parts
• Connect the accessory wiring to CNJ on the indoor control board. • Connect the accessory wiring to CNJ on the indoor control board.
• Connect the relays to the accessory wiring as shown below. • Connect the relays to the accessory wiring as shown below.
b) Connecting of relays and damper motors b) Connecting of relays and damper motors
• Connect the damper motor cable to the relays as shown below. • Connect the damper motor cable to the relays as shown below.
• Connect the power source of the damper motors to the terminal block (1, 2) in the indoor • Connect the power source of the damper motors to the terminal block (1, 2) in the indoor
control box as shown below. control box as shown below.
• When connecting damper motors, ensure to connect them sequentially starting from zone 1. • When connecting damper motors, ensure to connect them sequentially starting from zone 1.
Attention Attention
• Connect in such a way that the wiring color can not be mistaken. • Connect in such a way that the wiring color can not be mistaken.
It may cause damage or malfunction. It may cause damage or malfunction.
(CONTROL) (CONTROL)
CNJ CNJ
(WHITE) (WHITE)
Accessory Accessory
wiring wiring
Wiring specification Wiring specification
Accessory Wiring color Accessory Wiring color
White,Black White,Black
White,Red White,Red Damper moter1 output (for Zone1) Damper moter1 output (for Zone1)
Blue Blue Damper moter2 output (for Zone2) Damper moter2 output (for Zone2)
Yellow Yellow Damper moter3 output (for Zone3) Damper moter3 output (for Zone3)
Brown Brown Damper moter4 output (for Zone4) Damper moter4 output (for Zone4)
Locally supplied parts Locally supplied parts
Item Item
Voltate Voltate
Damper motor Damper motor
Frequency Frequency
Relay Relay
Cable (from Indoor unit to relays) Cable (from Indoor unit to relays)
Damper motor cable Damper motor cable
Input voltage Input voltage
Transformer *1 Transformer *1
Output voltage Output voltage
Fuse Fuse
*1: In case of AC24V, it is necessary. *1: In case of AC24V, it is necessary.
The size or power source method shall be selected properly depending on the type of the The size or power source method shall be selected properly depending on the type of the
damper motor and the damper motor cable to be used. damper motor and the damper motor cable to be used.
(POWER) (POWER)
Relay for damper Relay for damper
motors power source motors power source
LY2F or equivalent LY2F or equivalent
Damper Damper
motor motor
Relay LY2F or equivalent Relay LY2F or equivalent
Usefulness Usefulness
Damper motor power source Damper motor power source
Specification Specification
240VAC or 24VAC 240VAC or 24VAC
50Hz/60Hz 50Hz/60Hz
LY2F equivalent LY2F equivalent
0.75mm 0.75mm 2 2 or more or more
30m or less 30m or less
0.75mm 0.75mm 2 2 or more or more
30m or less 30m or less
240VAC 240VAC
24VAC 24VAC
FSL or FJL 1.25(EM) Time lag type FSL or FJL 1.25(EM) Time lag type
(NIPPON SEISEN CABLE, LTD.) (NIPPON SEISEN CABLE, LTD.)
or equivalent or equivalent
⑤
Method to set the large air
(FDUA160 only)
With the factory default, the air flow volume is set with emphasis on quietness.
When the static pressure setting is 120Pa or more, the air volume can be increased.
(FDUA160 only)
Attention
• If this setting is implemented, the noise will increase, so c
noise is acceptable.
Turn SW8-1 ON before turning on the power source, to select the large air flow volume setting.
SW8-1
SW8-1:OFF
(Standard setting)
SW8-1:ON
(Large air flow volume setting)
115
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'21 • PAC-SM-398 '19 • PAC-SM-316
volume of FDUA
with the user that the