Fujitsu AUYG07LVLA Design & Technical Manual page 365

AUXILIARY HEATER OUTPUT
Compact Cassette
Connector
A signal is outputed from Connector when indoor fan and compressor turn on under heating
operation.
igna output per or ance specifications are as
shown on the right
Ex. When Set Temperature(Ts) is 22°C;
and Room Temperature(Tr) increase above 12°C,
signal output is on.
and oo e perature r increase abo e
signal output is off.
and oo e perature r decrease be ow
and oo e perature r decrease be ow
Fan delay setting (JM3)
This is used to continue indoor unit fan operation for 1 minute after thermo OFF in heating mode.
1 minute delay control set by cutting jumper wire on PCB.
Circuit diagram example
Indoor
control PC board
Ex.) Relay unit
12 V
Connector
1
on/off
2
*10 m
Signal
* Make the distance from the PC board to the connected unit within 10 m.
Relay spec.: DC 12 V, 50 mA to less.
Operation
Heating
operation
Stop
ON
Indoor unit fan
OFF
ON
Output signal
OFF
Please place an external heater between the indoor unit
and the outlet.
Please be sure to use delay control of the fan.
Parts (Optional)
Compact Cassette
Parts name
Model name
Slim Duct
- CN10
Connected unit
Ex.) Heater
Relay
power
supply
Field supply
1min
CAUTION
Slim Duct
External control
-
set
- UTD-ECS5A
- (06 - 117) -
Wall Mounted Floor / Ceiling
- -
OFF
Tr-Ts = -1°C
ON
Tr-Ts = -10°C
OFF
signa output is on.
signa output is o .
External
Heater
Supply air
Wall Mounted Floor / Ceiling
- -
- -
Floor
-
Tr-Ts
Tr-Ts = -3°C
Tr-Ts = -12°C
Indoor unit
Return air
Floor
-
-
6. SYSTEM DESIGN