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INDOOR CONTROL
HEAT STAGE 2 F_-
N/A
HEAT STAGE 1 _.
COOL STAGE 1 D"
FAN
24 VAC HOT
DEHUMIDIFY F_"
24 VAC COMM
HUMIDIFY F_-
N/A
OUTDOOR _I_"
SENSOR _
CONNECTIONLI _z I"
FAN COiL 1-SPEED
AIR CONDITIONER
m
.... 4r_ REMOVE J2 JUMPER
D # FOR HEAT STAGING
.... 4i'_'_1 .B--
.... i"E_ "-"i REMOVE
L J1 JUMPER
] _" FOR
_r DEHUMIDIFY
.... FTI JM°DES
.....
-----q4HUM'D'F'ERJ
/ (24VAC)/
__4OUTDOORli_
"-- SENSOR I
............. J
Fig. 9--FV4B Fan Coil Wiring with 1-Speed Air Conditioner
A98477
INDOOR CONTROL FAN COIL 2-SPEED
AIR CONDITIONER
HEAT STAGE 2 F_
HEAT STAGE 1
COOL STAGE 1
COOL STAGE 2 F'_"
FAN
24 VAC HOT
DEHUMIDIFY E_
24 VAC COMM
HUMIDIFY I-_'_-I..
N/A
OUTDOORI--I q
SENSOR _
CONNECTIONLI _z f"
.... ''_ _ REIk!OVEJ2JU!PER
.... ,.E_]_ _b_ FOR HEAT STAGING
....°
REMOVE
] "J1 JUMPER FOR
_r'DEHUMIDIFY
.... I '-_ _1 MODES
__--q4HUMtDtF'ERJ
| (24VAC) |
._,_4OUTDOORli_
"-- SENSOR I
............. J
Fig. 10--FV4B Fan Coil Wiring with 2-Speed Air Conditioner
A98478
z_ CAUTION: A brazing shield MUST be used when tubing sets are being brazed to the unit connections to prevent
damage to the unit surface and condensate pan fitting caps. Failure to follow this CAUTION could result in minor personal
injury or product and property damage.
Units have sweat suction and liquid robe connections. Make suction tube connection first.
i. Cut tubing to correct length.
2. Insert tube into sweat connection on unit until it bottoms.
3. Braze connection using silver bearing or non-silver bearing brazing materials. Do not use solder (materials which melt below 800°F).
Consult local code requirements.
8
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