Carrier FED B Series User manual

Installation Instructions & Homeowner’s Information
Approved for use in manufactured homes.
NOTE: Read the entire instruction manual before starting the
installation.
Table of Contents
Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
LOCATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
POSITION UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
ELECTRICAL CONNECTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Line Voltage Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Thermostat Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Thermostat Wiring Connections . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Transformer Information
(applicable to on-site HVAC contractor) . . . . . . . . . . . . . . . . . . . . 4
Ground Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Filtered Grille Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Minimum CFM and Motor Speed Selection
(applicable to on-site HVAC contractor) . . . . . . . . . . . . . . . . . . . . 5
Sequence of operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Continuous Fan (Whole House Ventilation) . . . . . . . . . . . . . . . . . 5
Electric Heat or Emergency Heat Mode . . . . . . . . . . . . . . . . . . . . 5
HOMEOWNER’S INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . 11
THERMOSTAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Heating Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Cooling Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Temperature Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Fan Control (Whole House Ventilation) . . . . . . . . . . . . . . . . . . . 11
WHAT TO DO IF YOUR SYSTEM DOES NOT WORK . . . . . . . 11
Before Requesting a Service Call: . . . . . . . . . . . . . . . . . . . . . . . . 11
REGULAR MAINTENANCE REQUIREMENTS . . . . . . . . . . . . . 11
Indoor Unit Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Condensate Drain. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Outdoor Unit Coils. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Painted Surfaces. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
SAFETY CONSIDERATIONS
Improper installation, adjustment, alteration, service, maintenance, or
use can cause explosion, fire, electrical shock or other conditions which
may cause death, personal injury or property damage. Consult a
qualified installer, service agency, or your distributor or branch for
information or assistance. The qualified installer or agency must use
factory-authorized kits or accessories when modifying this product.
Refer to the individual instructions packaged with the kits or accessories
when installing.
Follow all safety codes. Wear safety glasses, protective clothing and
work gloves. Use quenching cloths for brazing operations. Have fire
extinguisher available. Read these instructions thoroughly and follow all
warnings or cautions attached to the unit. Consult local building codes
and the applicable editions of the National Electrical Codes (NEC)
NFPA 70.
In Canada, refer to the current editions of the Canadian Electrical Code
CSA C22.1.
Recognize safety information. This is the safety-alert symbol . When
you see this symbol on the unit and in instructions or manuals, be alert to
the potential for personal injury.
Understand the signal words DANGER, WARNING and CAUTION.
These words are used with the safety-alert symbol. DANGER identifies
the most serious hazards which will result in severe personal injury or
death. WARNING signifies hazards which could result in personal
injury or death. CAUTION is used to identify unsafe practices, which
may result in minor personal injury or product and property damage.
NOTE is used to highlight suggestions which will result in enhanced
installation, reliability, or operation.
INTRODUCTION
Model FED has been designed for downflow applications. Models are
available for electric heat sizes 10 kW – 20 kW. All models use an ECM
motor.
FED models contain a factory supplied replaceable air filter.
LOCATION
Select the best position which suits the installation site conditions. The
location should provide adequate structural support, space in the front of
the unit for service access, clearance for return air and supply duct
connections, space for refrigerant piping connections and condensate
drain line connections.
NOTE: Internal filter can be accessed from a separate filter door.
FED “B” Series
Downflow Electric Furnace
WARNING
!
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal injury or death.
Before installing, modifying or servicing system, always turn off main
power to system. There may be more than one disconnect switch. Lock
out and tag switch with a suitable warning label.
CAUTION
!
CUT HAZARD
Failure to follow this caution may result in personal injury.
Sheet metal parts may have sharp edges or burrs. Use care and wear
appropriate protective clothing and gloves when handling parts.

FED “B” Series: Installation Instructions & Homeowner’s Information
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
2
door.
POSITION UNIT
Allow space for wiring, piping, and servicing unit.
1. Cut a hole in the floor where the unit will be located. See Fig. 1 and
the floor cutout dimensions table.
A190097
2. Apply a bead of UL 181 rated caulk or approved duct mastic around
the perimeter of the hole, and install the plenum and make
appropriate connections to the ductwork. See Fig. 2.
A180300
Fig. 2 – Add Plenum and Ductwork
3. Apply a bead of UL 181 rated caulk or approved duct mastic around
the perimeter of the plenum, and then install the floor base supplied
with the unit over the plenum. Attach with four 1² length (min)
wood screws through the plenum and into the floor. See Fig. 3.
4. Place the optional accessory Floor Base supplied with the unit over
the plenum and attach with 1² length (min) screws, through plenum
and into floor. See Fig 3.
NOTE: Optional floor base not required for non-combustible flooring.
A180301
Fig. 3 – Floor Base
NOTE: The unit is shipped with the supply air side UP. Do steps 5 and
6 before inverting before installing.
5. Remove electrical knockouts from desired wire entry locations for
high voltage and thermostat wire.
6. Remove the filter and its access door before inverting the unit.
7. Invert the unit and place it onto the base. The unit flanges will fit
into the base opening.
8. Slide the unit to the back of the base. Make sure the tabs go into the
slots of the casing when you slide the unit back. See Fig. 4.
CAUTION
!
PROPERTY DAMAGE HAZARD
Failure to follow this caution may result in poor unit performance
and/or product damage.
Never operate the unit without a filter. For those applications where
access to an internal filter is impractical, a field-supplied filter must be
installed in the return air stream.
WARNING
!
FIRE HAZARD
Failure to follow this warning could result in personal injury or death,
or property damage.
When heaters are installed, maintain clearances from combustible
materials as specified on the unit rating plate.
Table 1 – Required Clearances
ALL MODELS - Space, inches
Back and Sides 0”
Front In Closet - 6” to closet door
In Alcove - 24” for access
Ducts 0”
WARNING
!
STRUCTURAL DAMAGE
Failure to follow this warning could result in personal injury or death,
or property damage.
The supplied noncombustible floor base is required for downflow
applications with electric heat strips.
Fig. 1 – Floor Cutout Dimensions
Furnace Model Number Hole Size
FED002410* thru FED004815* 14.5” x 14.5”
FED006020* 17.5” x 17.5”

FED “B” Series: Installation Instructions & Homeowner’s Information
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
3
IMPORTANT: Make certain that the unit is level or pitched slightly
toward the front to ensure proper unit operation.
9. After the unit is installed, cover the top to prevent construction
debris from entering. Remove the covering after construction is
complete.
A180302A
Fig. 4 – Unit Placement
ELECTRICAL CONNECTIONS
These units do not have a printed circuit board (PCB), they have a low
voltage circuit protective fuse (3 amp) in-line on the wire harness. Speed
selections are made at the fan motor with the WHITE wire for electric
heat mode. The motor is pre-programmed with the time-delay circuit on
some of the speed taps. See Table 2.
Before proceeding with electrical connections, make certain that supply
voltage, frequency, phase, and circuit ampacity are as specified on the
unit rating plate. See unit wiring label for proper field high and low
voltage wiring.
NOTE: Circuit breakers in Series B units are mounted horizontally, and
factory supplied in the OFF position. When installed in the downflow
position, slide circuit breaker switch to the right to power the unit.
Line Voltage Connections
a. Units with 10kW heaters are wired for single-supply circuit only.
See Fig. 5.
b. Units with 12kW, 15kW and 20kW heaters are wired for
dual-supply circuits only. See Fig. 6. Run each circuit through
separate holes in the cabinet using the two high-voltage
knockouts provided.
c. Torque all connections to the specification listed on the breaker
body.
A00077A
Fig. 5 – 10 kW Circuit Breaker and Disconnect Heaters
A00079B
Fig. 6 – 12, 15 &20 kW Circuit Breakers
Thermostat Wiring
Connection to Unit
Wire thermostat in accordance with wiring label on the blower (also
refer to Fig. 7). Use minimum 22 AWG color-coded, insulated (35°C
minimum) wire to make the low-voltage connections between the
thermostat, the unit, and the outdoor equipment. If the thermostat is
located more than 100 feet from the unit (as measured along the low
voltage wire), use 18 AWG color-coded, insulated (35°C minimum)
wire. Refer to outdoor unit wiring instructions for additional wiring
recommendations.
WARNING
!
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal injury or death.
Turn off the main (remote) disconnect device before working on
incoming (field) wiring.
Incoming (field) wires on the line side of the circuit breaker found in
the fan coil unit remain live, even when the switch is in the OFF
position. Service and maintenance to incoming (field) wiring cannot be
performed until the main disconnect switch (remote to the unit) is
turned off.
Ground
Lug
Field
Power
Wiring
Field
Ground
Wiring
ON
OFF
L1
L2
Field Ground
Wiring
A - L1
A - L2
Field Ground
Wiring
B - L3
B - L4
Circuit A :L1-L2
Circuit B :L3-L4
ON
OFF
ON
OFF
Field Power Wiring
Ground Lug
Ground Lug

FED “B” Series: Installation Instructions & Homeowner’s Information
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
4
Thermostat Wiring Connections
For complete electric furnace electrical specs, see Table 5.
For Fig. 7:
• R = 24V
• G = Continuous Fan
• W2, W3, E = Electric Heat
• C = Common
A190052B
Fig. 7 – Wiring Layout - Furnace
Transformer Information
(applicable to on-site HVAC contractor)
For wiring of add-on cooling or heat pump system, see instructions
included with add-on equipment.
The transformer in the furnace is factory wired for 230V operation. For
208V applications, the installing contractor should disconnect the black
wire from the 230V terminal on transformer and connect it to the 208V
terminal. See Fig. 8.
A05182
Fig. 8 – Transformer Connections
Ground Connections
NOTE: Grounding may be accomplished by using grounding lugs
provided in the control box.
1. Remove the door. See Fig. 9.
NOTE: Do not over-tighten the screws in the next step. Over-torquing
will deform the cabinet.
2. Install two 3-inch flanged head screws or screws with washers in
the lower front cavity of the furnace base and into the floor.
3. If desired, place an optional screw from inside the upper back panel
into a stud or backer to add stability. Use a self-tapping screw or
drill a pilot hole through the casing and into a stud. See Fig. 10.
4. If necessary, add a spacer between the wall and back of the unit to
keep the unit level.
5. Replace the filter and its access door.
6. Connect wire protection plate to downflow base after wiring is
complete, and before using long screws to attach front base of
cabinet to floor as shown in Fig. 9.
A190083C
Fig. 9 – Unit Attachment
(shows B series circuit breaker configuration)
R
G
W
Y
THERMOSTAT
R
G
W2
W3
E
C
FURNACE
(CONTROL)
RED
WHT
WHT
BLU
VIO
CBRO
HI or Y2
YEL
BLU or GRY
230
C
208
BRN
RED
YEL
BLK
SECONDARY
PRIMARY
WARNING
!
ELECTRICAL SHOCK HAZARD
Failure to establish uninterrupted or unbroken ground could result in
personal injury or death.
According to NEC, ANSI/NFPA 70, and local codes, the cabinet must
have an uninterrupted or unbroken ground in order to minimize
potential for personal injury or death if an electrical fault should occur.
The ground may consist of electrical wire or metal conduit when
installed in accordance with existing electrical codes. If conduit
connection uses reducing washers, a separate ground wire must be
used.
WIRING PROTECTION
PLATE (INSTALL BEFORE
BASE SCREWS)
BASE SCREWS
INSTALLED
IN STEP 2
ON
OFF

FED “B” Series: Installation Instructions & Homeowner’s Information
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
5
A190053B
Fig. 10 – Finished Installation with Filter
Filtered Grille Applications
When the unit is located within a closet, a filtered return air grille may be
used as a door or through an adjacent wall into the furnace compartment.
IMPORTANT: When this application is used, the air filter within the unit
must be removed.
Minimum CFM and Motor Speed Selection
(applicable to on-site HVAC contractor)
Units with electric heaters require a minimum CFM. Refer to the unit
wiring label to ensure that the fan speed selected is not lower than the
minimum fan speed indicated.
Fan speed selection is done at the fan motor. To change motor speeds,
reposition wire at fan motor speed terminals labeled 1-2-3. See Fig. 11.
Units with or without electric heaters require a minimum CFM. Refer to
the unit wiring label to ensure that the fan speed selected is not lower
than the minimum fan speed indicated.
A11048
Fig. 11 – Motor Speed Selection
‡ High Static Speed Tap. The motor may or may not have a yellow wire plugged into this tap. If present, the yellow thermostat input is used for high static cooling / heat pump application if
necessary.
To change motor speeds disconnect the WHITE fan lead from motor
connector terminal #2 (factory default position) and move to the desired
speed tap.
Speed taps 1, 2, and 3 have a 90 second blower off time delay
pre-programmed into the motor. Speed tap 2 (WHITE wire) is used for
electric heat only. Speed tap 5 is NOT used for electric heating. Also, see
Fig. 11 for motor speed selection location.
Sequence of operations
Continuous Fan (Whole House Ventilation)
Thermostat closes R to G. G sends signal direct to motor which
completes circuit to indoor blower motor. When G is de-energized, there
is a 90 second off delay before indoor blower motor stops.
Electric Heat or Emergency Heat Mode
Thermostat closes R to W. W energizes electric heat relay(s) which
completes circuit to heater element(s). W also energizes the indoor
blower motor. When W is de-energized, electric heat relay(s) opens and
the indoor blower motor is de-energized and stops.
OPTIONAL SCREW SPACER
(IF NECESSARY)
1 2 3 4 5
Speed Taps may be located on motor,
or on plug close to motor.
CLGN
1 2 3 4 5
Table 2 – Speed Tap Selection at Motor Connector
FE(D,U)24*‡ FE(D,U)36*‡ FE(D,U)48*‡ FE(D,U)60*‡
Tap 1 Continuous Fan Continuous Fan Continuous Fan Continuous Fan
Tap 2 Electric Heat Electric Heat Electric Heat Electric Heat
Tap 3 Not used for electric heat Not used for electric heat Not used for electric heat Not used for electric heat
Tap 4 Not used for electric heat Not used for electric heat Not used for electric heat Not used for electric heat
Tap 5¨ Not used for electric heat Not used for electric heat Not used for electric heat Not used for electric heat

FED “B” Series: Installation Instructions & Homeowner’s Information
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
6
Notes:
1.Airflow based upon dry coil at 230V with factory-approved filter and electric heater; airflow at 208V is approximately the same as 230V because the ECM motor is a constant torque
motor. The torque doesn’t drop off at the speeds the motor operates.
2.To avoid potential for condensate blowing out of drain pan prior to making drain trap, Return static pressure must be less than 0.40 in. wc.
3.Airflow above 400 cfm/ton on 4800 - 6000 size could result in condensate blowing off coil or splashing out of drain pan.
Table 3 – Airflow Performance - without Cooling Coil (CFM)
Size Blower Speed Total Static (inches water column)
0.10 0.20 0.30 0.40 0.50 0.60
FED002410*
Tap 5 1123 1081 1032 993 967 914
Tap 4 1015 934 892 857 800 737
Tap 3 1015 942 892 856 804 738
Tap 2 1012 833 761 705 643 585
Tap 1 1014 829 627 560 496 441
FED003610*
FED003612*
FED003615*
Tap 5 1492 1453 1425 1398 1364 1335
Tap 4 1382 1348 1314 1286 1255 1219
Tap 3 1383 1347 1313 1285 1254 1218
Tap 2 1223 1182 1151 1122 1079 1039
Tap 1 1165 1123 1092 1060 1012 973
FED004815*
Tap 5 1991 1954 1919 1888 1850 1811
Tap 4 1885 1849 1811 1776 1737 1692
Tap 3 1889 1846 1812 1778 1739 1690
Tap 2 1630 1584 1547 1499 1449 1403
Tap 1 1480 1431 1385 1332 1280 1237
FED006020*
Tap 5 2069 2031 2005 1977 1945 1912
Tap 4 1857 1824 1795 1760 1727 1689
Tap 3 1859 1822 1794 1760 1725 1688
Tap 2 1699 1664 1635 1595 1553 1509
Tap 1 1569 1482 1403 1355 1308 1263
Table 4 – Airflow Performance - with Accessory Cooling Coil (CFM)
Size Blower Speed Total Static (inches water column)
0.10 0.20 0.30 0.40 0.50 0.60
FED002410*
TAP 5 976 924 859 790 736 690
TAP 4 810 774 710 661 605 568
TAP 3 850 786 721 672 625 585
TAP 2 735 661 601 549 504 449
TAP 1 590 541 489 440 383 333
FED003610*
FED003612*
FED003615*
TAP 5 1266 1234 1208 1174 1138 1106
TAP 4 1239 1210 1177 1145 1107 1072
TAP 3 1229 1201 1170 1141 1110 1076
TAP 2 1107 1074 1039 1007 973 937
TAP 1 1048 1016 979 941 906 867
FED004815*
TAP 5 1615 1598 1566 1534 1504 1464
TAP 4 1533 1504 1471 1439 1399 1359
TAP 3 1549 1517 1474 1438 1404 1360
TAP 2 1330 1299 1258 1218 1181 1140
TAP 1 1218 1185 1148 1102 1056 978
FED006020*
TAP 5 1879 1849 1820 1789 1758 1724
TAP 4 1686 1656 1622 1588 1557 1522
TAP 3 1696 1662 1631 1599 1567 1532
TAP 2 1559 1520 1486 1451 1414 1376
TAP 1 1356 1323 1290 1247 1198 1156

FED “B” Series: Installation Instructions & Homeowner’s Information
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
7
1. All values are calculated at 230 volts.
2. Wire size must be in accordance with the applicable revision of the NEC and all other applicable codes.
3. Amperage ratings may vary. Verify correct Amperage listing to ensure adequate breaker size for over-current protection.
4. Use copper wire only.
Table 5 – Electrical Data, Fan Coil Only, with Electric Heat
Model Heater kW Circuit Motor Amps Heater Amps Min Circuit Amps Breaker Size
FED002410* 10 KW SINGLE 2.8 40 53.6 60
FED003610* 10 KW SINGLE 4.1 40 55.1 60
FED003612* 12 KW A (L1,L2) 4.1 31.7 44.8 50
B (L3,L4) 15.8 19.8 20
FED003615* 15 KW A (L1,L2) 4.1 40 55.1 60
B (L3,L4) 20 25 25
FED004815* 15 KW A (L1,L2) 640 57.5 60
B (L3,L4) 20 25 25
FED006020* 20 KW A (L1,L2) 640 57.5 60
B (L3,L4) 40 50 50

FED “B” Series: Installation Instructions & Homeowner’s Information
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
8
A190013D
Fig. 12 – 10 kW Wiring Diagram
CIRCUIT
BREAKER
CIRCUIT
BREAKER
5.
HI or Y2
Circulating Fan
Heating Tap
Do NOT use for
electric heating
Do NOT use for
heating without coil
High static cooling
only
1
2
3
4
5
HI or Y2 HIGH STATIC COOLING
1
2
YEL - 5
YEL (IF PRESENT)
9. RED wire / WHT stripe to QC1A, BLK wire / WHT stripe to QC2A.
OR

© 2022 Carrier. All rights reserved.
A Carrier Company
Edition Date: 11/22 Catalog No: IM-FED-02
Replaces: 496 01 5504 01
FED “B” Series: Installation Instructions & Homeowner’s Information
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
9
A190012E
Fig. 13 – 12 kW / 15 kW Unit Wiring Diagram
5.
HI or Y2
Circulating Fan
Heating Tap
Do NOT use for
electric heating
Do NOT use for
heating without coil
High static cooling
only
1
2
3
4
5
HI or Y2 HIGH STATIC COOLING
YEL (IF PRESENT)
9. RED wire / WHT stripe to QC1A, BLK wire / WHT stripe to QC2A.
GND
BRN
RED
RELAY 2
22 VDC COIL
TDR
RELAY 3
22 VDC COIL
BLK/WHT
RED/WHT
SEE NOTE #9
FIELD POWER WIRING SEE RATING PLATE FOR VOLTS & HERTZ DISCONNECT PER NEC
SEE NOTE #1
BLK
BLU
RELAY 1
22 VDC COIL
REC
VIOORN
HEA TERVA: 5.25
CB1 CB2 CB2 CB1
YEL
L2L4
L3
L1
IDR
GRY GRY
RELAY 3 HEAT STRIP-2 RELAY 3
68
BLK
42
YEL
DD2
BLK
YEL
RELAY 2 HEAT STRIP-1 RELAY 2
68
BLK
42
DD1
BLK
YEL
RELAY 1 HEAT STRIP-3 RELAY 1
68
BLK
42
DD3
BLK
ABA BHTR1 HTR3 HTR2
DD1 DD3 DD2
COM
208V
230V
TRAN
RED
24V
BRN
GND
BRN - C
BLK - L
YEL - N
GRN/YEL - GND
BLU - 1
FM
WHT - 2
CLGN
123
45
MOTOR CONNECTOR
GND
YEL - 5
OR

© 2022 Carrier. All rights reserved.
A Carrier Company
Edition Date: 11/22 Catalog No: IM-FED-02
Replaces: 496 01 5504 01
FED “B” Series: Installation Instructions & Homeowner’s Information
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
10
A190050D
Fig. 14 – 20 kW Wiring Diagram
OR
AB BA
HI or Y2
HI or Y2

© 2022 Carrier. All rights reserved.
A Carrier Company
Edition Date: 11/22 Catalog No: IM-FED-02
Replaces: 496 01 5504 01
FED “B” Series: Installation Instructions & Homeowner’s Information
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
11
HOMEOWNER’S INFORMATION
THERMOSTAT
Your unit is controlled by the thermostat mounted on your wall.
The thermostat is a highly sensitive low voltage device and is
available in several different configurations from different
manufacturers. The details listed below are typical for most
installations. Ask your dealer for more specific information
regarding the model of thermostat installed.
Heating Mode
Set the system selector switch to HEAT. The unit will run until
the actual room temperature is raised to the point you have
selected.
NOTE: If you have a heat pump outdoor unit installed, you may
see steam (may look like “smoke”) occasionally coming from the
outdoor unit during cold weather. This is normal as frost is
removed from the coil during the defrost cycle.
Cooling Mode
If a cooling system is installed, set the system selector switch on
the thermostat to COOL. The unit will run (as an air conditioner)
until the actual room temperature is lowered to the point you
have selected.
Temperature Control
Set the temperature selector to your desired room temperature.
For heating, the unit will run any time the actual room
temperature falls below the point you have selected. For cooling,
it will run any time the actual room temperature rises above the
point you have selected.
Fan Control (Whole House Ventilation)
The fan selector switch allows you to run the fan continuously or
cycle it automatically with the heating or cooling system. Set the
selector switch to ON for continuous operation or to AUTO for
automatic cycling. For maximum comfort satisfaction,
continuous fan operation throughout the year is recommended
(selector switch set to ON).
WHAT TO DO IF YOUR SYSTEM DOES NOT
WORK
Before Requesting a Service Call:
1. Check thermostat settings. If you desire heat, make sure to
select a temperature above the actual room temperature, and
set the system selector switch to HEAT. If you desire
cooling, make sure to select a temperature below the actual
room temperature, and set the system selector switch to
COOL.
2. Inspect your return air filter. Replace a dirty filter or clean a
reusable type filter.
3. Check circuit breakers and/or fuses. Reset breakers or
replace fuses as necessary.
4. Inspect the coils and fins on the outdoor unit. Clean away
any obstructions (grass clippings, leaves, dirt, dust, or lint).
Check that branches, twigs, or other debris are not
obstructing the fan blade.
If your system still does not operate, contact your
servicing dealer.
Have the Model and Serial Numbers of the indoor and outdoor
units available and be sure to describe the problem.
REGULAR MAINTENANCE REQUIREMENTS
Your system should be regularly inspected by a qualified service
technician. Between visits, there are some routine maintenance
procedures you can do to help keep your system operating at
peak performance.
Indoor Unit Air Filter
Inspect air filters at least monthly and replace or clean as
required. Disposable type filters should be replaced. Reusable
type filters may be cleaned by soaking in mild detergent and
rinsing with cold water. Install filters with the arrows on the side
pointing in the direction of air flow.
Dirty air filters are the most common cause of inadequate heating
or cooling performance, and of compressor failures.
Condensate Drain
If a cooling system is installed, the indoor coil condenses water
from the air, and this water must be disposed through an
appropriate drain system. During the cooling season check at
least monthly for free flow of drainage. Clean if necessary.
Outdoor Unit Coils
Grass clippings, leaves, dirt, dust, lint from clothes dryers, and
fall-off from trees can be drawn into coils by movement of the
air. Clogged outdoor coils will lower the efficiency of your unit
and could cause damage to the compressor. Clean debris away
from the outdoor coils.
Use a soft bristle brush with light pressure only. Do not damage
or bend coil fins. Damaged or bent fins may affect unit operation.
Painted Surfaces
In geographical areas where the water has a high concentration of
minerals (calcium, iron, sulfur, etc.) it is recommended that lawn
sprinklers not be allowed to spray on the unit. Spraying this type
of water on the unit may result in premature deterioration of the
paint finish and metal components.
WARNING
!
ELECTRICAL SHOCK HAZARD
Failure to turn off electrical power could result in personal injury or
death.
Turn OFF all electrical power to both the indoor and outdoor units
before performing any maintenance or removing any panels or doors.
There may be more than one electrical disconnect switch.