Step 6 - Select Proper Blower Speed - HEIL FMA4X Installation Instructions Manual

INSTALLATION INSTRUCTIONS
WARNING
!
!
ELECTRICAL SHOCK HAZARD
Failure to follow this warning
personal injury or death.
Field wires on side of disconnect found in fan coil
remain live, even when circuit breaker is off.
Service and maintenance to
cannot be performed until main disconnect switch
(remote to the unit) is turned off. Lock out and tag
switch with a suitable warning label.
Unit cabinet must have a continuous
path to ground in order to minimize potential for
personal injury or death if an electrical fault should
occur. This ground may consist of electrical wire
or approved conduit when installed in accordance
with existing codes. (See Step 3. below.)
NOTE: All units are shipped from factory wired for 240VAC
transformer operation. For 208VAC operation, move primary
lead from 240VAC terminal to 208VAC terminal.
Figure 6 Transformer Connections
SECONDARY
See Figure 7 and Figure 8 for field low - voltage wiring. See
Figure 1 for location of the electrical inlets. For maximum
ampacity and over - current protection, see unit rating plate or
product data sheet.
1. Provide power supply for unit being installed in
accordance with unit wiring diagram and rating plate.
2. Connect line -voltage leads to the harness pigtail or the
heat - kit circuit breaker. Use copper wire only.
3. Use UL listed conduit and conduit connector for
connecting line - voltage leads to unit and obtaining
proper ground. If conduit connection uses reducing
washers, a separate ground wire must be used.
Grounding can also be accomplished by using the
ground lug provided in the control box. Power wiring
may be connected to either the right or left sides or top
of unit. Knockouts of 7/8" (22 mm) dia. are provided for
connection of power wiring to unit. Some heater sizes
may require a conduit larger than the 7/8" opening; in
this situation the high - voltage connection opening
should be enlarged to fit the conduit.
When removing
connections, an opening in the insulation should be cut
496 01 8001 04
could result
incoming wiring
electrical
BLK
YEL
BLK
RED
PRIMARY
the knockouts for electrical
Specifications subject to change without notice.
to fit the opening. The cut edge of the insulation should
be reinforced with foil tape to prevent fraying. The foil
facing and insulation shall not be removed beyond the
knockout opening size.
in 4. Install plastic grommet packed with unit in
low -voltage wires.
5. Connect low - voltage leads to thermostat and outdoor
unit. See Figure 7 and Figure 8 as well as the outdoor
unit wiring label.
Figure 8 - Wiring Layout Air Conditioning Unit
THERMOSTAT THERMOSTAT
R R
G G
W W
C C
Y Y
Figure 8 - Wiring Layout Heat Pump Unit
THERMOSTAT
R
G
C
W
2
E
A13092
L
O
Y
Step 6 — Select Proper Blower Speed
Before operating unit, be sure that the proper blower speed
has been selected. Fan speeds are selected manually.
To change the fan speed on model FMA4P:
Factory default fan speed is medium; fan -motor red wire
connected to fan relay No.
For high speed, connect fan -motor black wire to fan relay
No. 4.
For low speed, connect fan -motor blue wire to fan relay No.
4 and fan -motor red wire to fan relay No. 6.
Always connect the unused fan -
terminal block.
When selecting the proper airflow, refer to Table 3 below to
choose proper blower speeds for cooling and heating.
Fan Coil: FMA4X, FMA4P
(Cooling and 1 - Stage Heat)
FAN COIL FAN COIL
(CONTROL) (CONTROL)
RED RED
R R
GRN GRN
G G
WHT WHT
W W
1 1
B
C
YELLOW YELLOW
(Cooling and 2 - Stage Heat)
FAN COIL
(CONTROL)
RED
R
GRN
G
B C
WHT
W
1
WHT
ORANGE
YELLOW
4.
wire to the dummy
hole for
AIR COND.
C C
Y Y
A150158
HEAT PUMP
(CONTROL)
R
C
W
2
O
Y
A150159
5