installation, start-up and
619FNF
service instructions
IN-CEILING CASSETTE
FAN COIL UNITS
CONTENTS
Page
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . . . . 1
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19
I. Step 1 — Complete Pre-Installation Checks . . . . . . 2
II. Step 2 — Locating and Mounting the Unit. . . . . . . . 6
III. Step 3 — Locating and Mounting the Room
Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
IV. Step 4 — Complete Refrigerant Piping
Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
V. Step 5 — Make Electrical Connections . . . . . . . . . 11
INSTALLATION OPTIONS . . . . . . . . . . . . . . . . . . . . . . . .19-22
I. Fresh Air Intake . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
II. Conditioned Air Supply to Adjacent Room. . . . . . 19
III. Room Controller Configuration Setup . . . . . . . . . . 21
IV. Louver Mode Selection . . . . . . . . . . . . . . . . . . . . . . 21
V. Main Board Configuration. . . . . . . . . . . . . . . . . . . . 21
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22,23
SERVICE AND MAINTENANCE. . . . . . . . . . . . . . . . . . . . . . 23
TROUBLESHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . .23,24
SAFETY CONSIDERATIONS
Installing and servicing air-conditioning equipment can be
hazardous due to system pressure and electrical components.
Only trained and qualified service personnel should install or
service air-conditioning equipment.
Untrained personnel can perform basic maintenance, such as
cleaning and replacing filters. All other operations should be
performed by trained service personnel. When working on air
conditioning equipment, observe safety precautions in literature, tags, and labels attached to unit.
Follow all safety codes. Wear safety glasses and work gloves.
Use quenching cloth for brazing operations. Have fire extinguisher available. Read these instructions thoroughly. Consult local building codes and the National Electrical Code
(NEC) for special installation requirements.
619FNQ
Sizes 018-03036
Cancels: New II 619F-18-1
4/1/06
GENERAL
CAUTION: This system uses Puron® refrigerant
(R-410A), which has higher pressures than R-22 and
other refrigerants. No other refrigerant may be used in
this system. All equipment must be designed to handle
R-410A refrigerant. If unsure about equipment, consult
the equipment manufacturer.
CAUTION: Do not operate the unit without a filter
or with the grille removed. Damage to the unit or personal injury may result.
These instructions cover the installation, start-up and service
of in-ceiling cassette fan coil units. See Fig. 1.
The following accessories can be used with 619FNF, FNQ
units. See the price pages for part numbers and additional
information for the following accessories:
• photocatalytic and electrostatic filter with mount
• air supply outlet obstruction kit
• wired room controller
• room controller wiring kit for multiple units
• zone manager kit for multiple units
• zone manager
• infrared remote kit
WAR NING : Before installing or servicing system,
always turn off main power to system. There may be
more than one disconnect switch. Turn off accessory
heater power if applicable. Electrical shock can cause
serious personal injury.
Fig. 1 — 619FNF, FNQ Unit
INSTALLATION
I. STEP 1 — COMPLETE PRE-INSTALLATION CHECKS
A. Unpack Unit (See Fig. 1)
Move the unit to final location. The grille panel and the
remote control are packed separately for maximum protection. Remove unit from carton, being careful not to lift the
unit by the condensate drain discharge pipe or by the refrigerant connections. Handle by the four corners of the unit.
See Table 1 for field-supplied installation materials required
for installation.
B. Inspect Shipment
File a claim with the shipping company if shipment is dam-
C. Consider System Requirements
Consult local building codes and NEC for special installation
requirements. Use only designated indoor units with outdoor
units. See Tables 2-4B.
See Fig. 2 for unit dimensions. Allow sufficient space for airflow clearance, wiring, refrigerant piping, and servicing
units.
Avoid mounting the unit in areas that are:
• exposed to direct sunlight
• too close to heat sources
• damp or in areas exposed to water
• located in areas that could obstruct air circulation, such
as near curtains or furniture
aged or incomplete. Check the unit nameplates to ensure
units match job requirements.
Table 1 — Field-Supplied Installation Materials
NAME SPECIFICATIONS
Connection Pipe
Wall Sleeve —
Wall Cap —
Finishing Tape PVC Film
Fastening Tape —
Tube Insulation —
Drain Hose 1 in. ID
Sealer Putty —
Outdoor Power Supply Cable
Control Wire Electrical Connecting Cable
Between Indoor and Outdoor Unit
Wire Nuts —
Conduit —
LEGEND
AWG — American Wire Gage
NEC — National Electrical Code
619FNF018,024/FNQ01824:
619FNF, FNQ03036: 3/4 in. (Mixed Phase)/3/8 in. (Liquid)
619FNF018-03036: AWG 14
619FNQ01824-03036: AWG 12
Cable Type: AWG 22 synthetic rubber insulation with
Neoprene coating, according to NEC codes.
Table 2 — Matching Indoor Units to Outdoor Units*
SYSTEM
TYPE
Cooling Only
Cooling with
Electric Heat
Heat Pump
*All units use R-410A refrigerant only.
SYSTEM SIZE
018 538ENF018000 619FNF018000 619FN9005
024 538ENF024000 619FNF024000 619FN9006
030 538ENF030000 619FNF030360 619FN9006
036 538ENF036000 619FNF030360 619FN9006
018 538ENF018000 619FNQ018240 619FN9006
024 538ENF024000 619FNQ018240 619FN9006
030 538ENF030000 619FNQ030360 619FN9006
036 538ENF036000 619FNQ030360 619FN9006
018 538QNF018000 619FNQ018240 619FN9006
024 538QNF024000 619FNQ018240 619FN9006
030 538QNF030000 619FNQ030360 619FN9006
036 538QNF036000 619FNQ030360 619FN9006
Table 3 — AccuRator* Control Sizes and Refrigerant Charge Requirements
SYSTEM
TYPE
Cooling Only
Cooling with
Electric Heat
Heat Pump
*AccuRator controls are for outdoor units. See the outdoor installation instructions for more information.
†The outdoor unit is either fully charged or under charged from the factory.
SYSTEM
SIZE
018 0.049 — B 4.8 0.0
024 0.057 — B 5.3 1.2
030 0.061 — B 5.0 3.0
036 0.074 — B 7.0 2.3
018 0.049 — B 4.8 0.0
024 0.057 — B 5.3 1.2
030 0.061 — B 5.0 3.0
036 0.074 — B 7.0 2.3
018 0.051 0.046 B 5.5 0.0
024 0.055 0.053 B 6.9 0.0
030 0.063 0.055 B 10.7 1.8
036 0.07 0.063 B 10.5 0.0
COOLING
ACCURATOR
OUTDOOR
UNIT
HEATING
ACCURATOR
ACCURATOR
TYPE
5
/8 in. (Mixed Phase)/3/8 in. (Liquid)
INDOOR UNIT
MODEL NUMBER
FAC TORY
CHARGE† (lb)
INDOOR UNIT
GRILLE ITEM NUMBER
ADDITIONAL FIELD
CHARGE REQUIRED† (lb)
—2—
)892("4/3-11
)522("46/55-8
)082("11
Supply air
1? 10-5/8??(575)
051( "23/92-5
Ø)
Return air
619FNF018
)021("4/3-4
Supply air
1
-
3/16
(30)
1' -10-5/8"(575)
3/8"(9)
2"(52)
)201("4
Ø 2-3/14" (70)
)351
(
"6
)34("6
1
/11-1
)85
1
("23/7-7- '0
2'-4-11/32"(720)
1 -5/16"(49)
2-13/64"(56)
)342("61/9- 9
"
)
6
5
1/5
3
1
- 5
(
1'-9-21/32"(550)
)515("23/98-'1
"
Ø
2
(50)
"
2'-8-1/2"(825)
)5
0
3
(
'1
Supply air Supply air
)
05
1
("
23
/9
2-5
Ø
Return air
1"(25)
619FNF024, 03036 / 619FNQ01824, 03036
)
0
5
1
(
"
2
/3
9
2
5
Ø3-15/16"
(100)
1-7/8"(47)
2'-8-1/2"(825)
)
0
21("4/3
4
2
-
5
8/
"
7
("8/
)84
)8
2
1
("
5
)351("6
)
42("6
1/
51
(
6
6
)
)94("
6
1/51-1
)25
"6
1
11-57/64"
(
1'-11-7/16"(595)
(302)
1 -31/32"
(50)
)
31
8
("
8
-'2
)732("23/11-9
)
8
6
1
(
"
8/
5
-6
)06
9
("
4
6/15-1-'3
NOTE: Dimensions in ( ) are in mm.
5
2
(
"1
Ø)
Fig. 2 — Unit Dimensions
—3—
Table 4A — 619FNF Physical Data
SYSTEM SIZE 018 024 030 036
NOMINAL CAPACITY (Btuh) 17,000 23,600 29,000 36,400
OPERATING WEIGHT (lb) 49 91 95 95
SEER 13
REFRIGERANT* R-410A
Control (Cooling) AccuRator Control
INDOOR FAN Direct Drive Centrifugal
Rpm/Cfm High 1000/470 440/690 660/910 660/910
Rpm/Cfm Medium 890/420 360/560 550/760 550/760
Rpm/Cfm Low 730/340 300/470 470/670 470/670
Motor Watts 120 110 210 210
Blowers Quantity...Size (in.) 1...11.1
INDOOR COIL Copper Tube, Aluminum Fin
Face Area (sq ft) 3.2 4.8 4.6 4.6
No. of Rows 2233
Fins/in. 22 18 18 18
Circuits 5 6 10 10
FILTERS Cleanable
Quantity...Size (in.) 1...17 x 16
AIRSWEEP
Horizontal Auto/Preset
OPERATING LIMITS
Cooling (Min/Max) 55 F/125 F
CONTROLS Integrated Microprocessor
Remote Controller Options Wireless, CRC
Diagnostics Ye s
Defrost Method Demand Defrost
Timer Mode Ye s
Warm Start Feature Ye s
Tes t Mo de Ye s
Freeze Protection Ye s
Dehumidification Mode Ye s
Fan Mode High/Medium/Low/Auto
Auto Changeover Ye s
Auto Restart Ye s
Control Voltage 24
System Voltage 208/230
REFRIGERANT LINES
Connection Type Flare Flare Flare Flare
Mixed-Phase Line (in.) OD
Vapor Line (in.) OD
Max Length (ft) 200 200 200 200
Max Lift (Fan Coil Above) (ft) 60 60 60 60
3
/
8
5
/
8
Max Lift (Fan Coil Below) (ft) 60 60 60 60
CONDENSATE DRAIN SIZE (in.) 1111
LEGEND
CRC — Carrier Room Controller
SEER — Seasonal Energy Efficiency Ratio
*See Table 3 for factory charge and additional field charge requirements.
3
/
8
5
/
8
3
/
8
3
/
4
3
/
8
3
/
4
—4—
Table 4B — 619FNQ Physical Data
SYSTEM SIZE 018 024 030 036
NOMINAL CAPACITY (Btuh)
Heat Pump
Cooling 17,900 22,600 29,200 33,400
Heating 16,800 20,800 27,400 32,400
Cooling with Electric Heat 17,000 22,600 29,000 36,000
SEER 13
HSPF 7.7
OPERATING WEIGHT (lb) 91 91 95 95
REFRIGERANT* R-410A
Control (Cooling) AccuRator Control
Control (Heating) AccuRator Control
INDOOR FAN Direct Drive Centrifugal
Rpm/Cfm High 440/690 440/690 660/910 660/910
Rpm/Cfm Medium 360/560 360/560 550/760 550/760
Rpm/Cfm Low 300/470 300/470 470/670 470/670
Motor Watts 110 110 210 210
Blowers Quantity...Size (in.) 1...18
INDOOR COIL Copper Tube, Aluminum Fin
Face Area (sq ft) 4.8 4.8 4.6 4.6
No. of Rows 2233
Fins/in. 18 18 18 18
Circuits 6 6 10 10
FILTERS Cleanable
Quantity...Size (in.) 1...24 x 23
AIRSWEEP
Horizontal Auto/Preset
OPERATING LIMITS
Heating (Min/Max) 15 F/75 F
Cooling (Min/Max) 55 F/125 F
CONTROLS Integrated Microprocessor
Remote Controller Options Wireless CRC
Diagnostics Ye s
Defrost Method Demand Defrost
Timer Mode Ye s
Warm Start Feature Ye s
Tes t Mo de Ye s
Freeze Protection Ye s
Dehumidification Mode Ye s
Fan Mode High/Medium/Low/Auto
Auto Changeover Ye s
Auto Restart Ye s
Control Voltage 24
System Voltage 208/230
REFRIGERANT LINES
Connection Type Flare Flare Flare Flare
Mixed-Phase Line (in.) OD
Vapor Line (in.) OD
Max Length (ft) 200 200 200 200
Max Lift (Fan Coil Above) (ft) 60 60 60 60
3
/
8
5
/
8
3
/
8
5
/
8
Max Lift (Fan Coil Below) (ft) 60 60 60 60
CONDENSATE DRAIN SIZE (in.) 1111
LEGEND
CRC — Carrier Room Controller
HSPF — Heating Seasonal Performance Factor
SEER — Seasonal Energy Efficiency Ratio
*See Table 3 for factory charge and additional field charge requirements.
5
/
16
3
/
8
3
/
4
3
/
8
3
/
4
—5—
II. STEP 2 — LOCATING AND MOUNTING THE UNIT
A. Locating the Unit
Install the unit as centrally as possible in the room. The air-
direction can be controlled by the remote control (where
flow
used) or automatically, according to the unit operating mode
(cooling or heating). Controlling the airflow automatically
will ensure optimum distribution of the air in the room.
In Cooling mode, the louvers should be positioned so that the
air is directed towards the ceiling. Refer to Fig. 3. In Heating
mode, the louvers should be positioned so that the air is
directed toward the floor to prevent layers of hot air forming
close to the ceiling. Refer to Fig. 3. The louvers will be automatically positioned when the louvers are set to Automatic
mode. Alternatively, the louvers can be placed in intermediate positions (with infrared remote accessory kit only) or
allowed to move continuously (Swing mode).
In order to allow easy and rapid installation and maintenance, ensure that the unit is mounted in a location that is
easily accessible.
Restricting Air Outlets
A maximum of two air outlets can be restricted at one time.
See Fig. 3. The air supply outlet obstruction accessory kit
can be used to obstruct air outlets. Contact your local dealer
for more information.
B. Mounting the Unit
Use a stacker to lift the unit to the installation location.
Refer to Fig. 4. If the mounting location is in a plaster board
ceiling, the maximum dimensions of the unit housing cutout
must not exceed 2 ft, 2 in. square for 619FNF018 units and
2 ft, 11 in. square for 619FNF024, 03036 and 619FNQ01824,
03036 units.
NOTE: In rooms with high humidity, brackets should be
insulated using self-adhesive insulation.
Mark the position of the hangers, refrigerant lines and condensate drain pipe, power supply cables and remote control
cable (see Fig. 2 for dimensions). The cardboard template
(supplied with the unit) may be used as a guide. Depending
on the type of ceiling, the hangers can be fixed as shown in
Fig. 5.
Once the threaded hangers have been positioned, do not
tighten the nuts. Insert the washers as shown in Fig. 5. First
position the refrigerant lines, which will be connected in the
Complete Refrigerant Piping Connections section. Remove
the “T” bar in the ceiling to facilitate installation. See Fig. 6.
Carefully lift the unit (without the frame) using the four suspension brackets (or the four corners), and insert it into the
false ceiling. If the “T” bar cannot be removed from the ceiling the unit may need to be tilted. See Fig. 7.
NOTE: Tilting the unit may only be carried out with false
13
ceilings with a minimum height of 11 ft-
/16 inches.
Align and level the unit by adjusting the nuts and locknuts
on the threaded hangers, maintaining a distance of 1 in. to
3
/16 in. between the sheet metal body and the underside of
1
the false ceiling. See Fig. 8. Reposition the “T” bar and align
the unit in relation to the bar by tightening the nuts and
locknuts. After connection of the condensate drain line and
the refrigerant lines, carry out a final check to make sure
that the unit is level.
Drilling the Hole for Connection Pipes in the External Wall
After positioning the units and determining the connection
3
position, drill a 2
/4 in. hole in the wall. The same hole can be
used as a condensate drain pipe conduit. The hole should
3
have a
/16 in. to 3/8 in. slope toward the outside. Refer to
Fig. 9. Insert the plastic conduit. Pass the power connection
cables through the conduit. The power connection cables will
be connected in the Make Electrical Connections section.
Running the Condensate Drain Piping
To ensure correct condensate water flow, the drain pipe
should have a gradient of 2% without obstructions. Additionally, a trap of at least 2 in. depth should be made to prevent
unpleasant odors from reaching the room.
Heat pump: louver position for correct airflow.
Cooling: louver position for correct airflow.
Fig. 3 — Louver Positioning
—6—
Max. 2 louvers closed
Fig. 4 — Positioning Unit
Nut
Washers
Threaded hangers
Wooden frame
Nut
Washer
Threaded hangers
Washer
Nut
Nut
Fig. 5 — Attaching Hangers to Ceiling
Threaded hangers
False
Ceiling
1“ to 1-3/16”
Spirit
Level
Fig. 8 — Align and Level the Unit
"3
m)
÷
m 08/0
"4/
3-2
7(
Indoor
3/16"
÷
(5
10 m
÷
3/8"
)
m
Outdoor
Fig. 9 — Drilling for Connections
The condensate may be discharged at a maximum height of
7
/8 in. above the unit, as long as the ascending tube is verti-
7
cal and aligned with the drainage flange.
If it is necessary to discharge the condensate from a level
7
above 7
/8 in., install an auxiliary water discharge pump and
float valve. A float valve is recommended to stop the compressor if there is a fault at the auxiliary pump.
The condensate pipe must be insulated with condensation
proof material such as polyurethane, propylene or neoprene
3
/16 in. to 3/8 in. thickness. See Fig. 10.
of
Threaded Hangers
T-Bar
Supension Brackets
"T" bar
(to be removed)
Fig. 6 — Threaded Hangers and T Bar
Threaded Hangers
T-Bar
Supension Brackets
Fig. 7 — Positioning Unit in Ceiling
T-Bar
CAUTION: The drain tube extension must be
securely fastened to the condensate drain. Failure to
do so could result in condensate water dripping on to
the floor, which could cause personal injury.
NOTE: If more than one unit is installed in the room, the
drain system can be designed as shown in Fig. 10.
Installing the Grille and Frame Assembly
Carefully unpack the assembly and check for damage sustained in transport. Attach the assembly to the unit by using
the two hooks. See Fig. 11. Tighten the four screws, link the
electrical connectors and insert the wires in the cable clamp.
Use the screws supplied to fix the frame in to position. See
Fig. 12.
Ensure that the frame is not distorted by excessive tightening, that it is aligned with the false ceiling and that there is
a seal between the air inlet and outlet. See Fig. 13. Gasket
“A” prevents return air from mixing with the supply air and
gasket “B” prevents the supply air from leaking into the ceiling void. Once the unit is mounted in the ceiling, the gap
between the unit frame and the false ceiling must not be
3
more than
/16 in. wide.
—7—
2%
2” (50 mm)
x.
a
m
7-7/8”(200 mm)
Fig. 10 — Condensate Drain Pipe
Frame support brackets
A. Gasket "A"
B. Gasket "B"
A AIR B
Fig. 13 — Gasket Location
III. STEP 3 — LOCATING AND MOUNTING THE ROOM
CONTROLLER
WARNING: Electrical shock can cause personal
injury and death. Shut off all power to this equipment
during installation. There may be more than one disconnect switch. Tag all disconnect locations to alert
others not to restore power until work is completed.
Fig. 11 — Attach Frame Assembly
Safety cord
Cable clamp
Power connection
cables from unit
Power connection
cables from frame
Frame support
screws
Fig. 12 — Fix Frame in Position
A. Locating the Room Controller
See Fig. 14 for room controller dimensions. If the air sensor
in the room controller is going to be used, the room controller
should be located by considering the following:
• Position controller with a minimum clearance of 5 ft from
the floor.
• Locate the unit in the same area as the fan coil unit; preferably on an inside partitioning wall.
• Locate on a section of the wall without pipes or ductwork.
• Do not locate close to a window, on an outside wall, or
next to a door leading to the outside.
• Do not locate where the controller is exposed to direct
light and heat from a lamp, sun, fireplace, or other temperature-radiating object that may cause a false reading.
• Do not locate close to, or in direct airflow of, a heating or
cooling supply.
• Do not locate in areas with poor circulation, such as
behind a door or in an alcove.
NOTE: Do not exceed 500 ft of network wiring when mounting the room controller.
—8—
4-1/4" (108mm)
0mm)7("4/3-2
Fig. 14 — Room Controller Dimensions
B. Mounting the Room Controller (Fig. 15-17)
Unscrew the side fixing screw. Open the room controller rear
mounting base to expose the mounting holes. The base can
be removed to simplify mounting (snap apart carefully at
hinge to separate mounting base from the rest of the room
controller). Route the room controller wires through the
large hole in the mounting base. Level the mounting base
against the wall (for aesthetic value only, as the room controller does not need to be level for proper operation) and
mark the wall through the two mounting holes. Drill two
3
/16 in. mounting holes in the wall where marked. Secure the
mounting base correctly (UP) to the wall with the two screws
and two anchors provided, (additional anchoring holes are
available for more secure mounting if necessary) making
sure all wires extend through the hole in the mounting base.
Adjust the length and routing of each wire to reach the
proper terminal in the connector block on the mounting base,
1
/4 in. of extra wire (strip only 1/4 in. of insulation from
with
each wire to prevent adjacent wires from shorting together
when connected).
Match and connect equipment wires to proper terminals in
the connector block. Both power and communication wires
must be connected correctly for proper room controller
operation.
Push any excess wire into the wall and against mounting
base. If the air sensor is being used on the room controller,
seal the hole in the wall to prevent air leaks. Leaks can
affect sensor operation.
Push the room controller snap hinge to the base and tighten
the side fixing screw.
3/4"(20mm)
Connection Cable
Fig. 16 — Locating the Connection Cable
P
G
C
Connection Cable
Fig. 17 — Connecting the Room Controller
P
G
C
P
G
C
Mounting screws
Fig. 15 — Mounting the Room Controller
—9—
IV. STEP 4 — COMPLETE REFRIGERANT PIPING
CONNECTIONS
IMPORTANT: During unit installation make the refrigerant
connections first and then the electrical connections. If the
unit is uninstalled, disconnect the electrical cables first and
then the refrigerant connections. Refer to the outdoor unit
installation instructions for tube sizing and limitations.
Use field-supplied refrigerant grade piping designed for use
with R-410A refrigerant.
A. Flaring the Ends of Pipes
Remove the protective caps from the copper pipe ends. Holding the tube downward, cut the extreme end off, removing
any copper shavings with a deburring blade. Remove the
flare nuts from the “FLARE” connection body of the indoor
unit and insert them into the pipes. Make the flare to the
pipe end with the proper flaring tool. The flare end must not
have any burrs or imperfections. The length of the flared
walls must be uniform. See Fig. 18 and 19.
Lubricate the end of pipe and the thread of the flare connection with anti-freeze oil. Tighten by hand and then use two
wrenches to tighten all connections fully, applying the tightening torque shown in Table 5. Refer to Fig. 20.
Table 5 — Tightening Torque
If either refrigerant tubing or indoor coil is exposed to the
atmosphere, the system must be evacuated following good
refrigeration practices.
Fig. 18 — Removing Burrs
L
L
TUBE DIAMETER
(in.)
3
/8 in. 31
5
/8 in. 48
3
/4 in. 74
B. Piping Connection to the Unit
Use two wrenches to tighten all connections.
CAUTION: Insufficient tightening torque could
cause a refrigerant leak from the connection. Excessive
tightening torque will damage the pipe flare.
Once all connections have been completed, check for leaks
using soapy water. If no leaks were found, wrap connections
with anti-condensate insulation and tighten with tape, without exerting excessive pressure on the insulation. Repair and
cover any possible cracks in the insulation.
CAUTION: DO NOT BURY MORE THAN 36 IN.
OF REFRIGERANT PIPE IN THE GROUND. If any
section of pipe is buried, there must be a 6-in. vertical
rise to the valve connections on the outdoor unit. If
more than the recommended length is buried, refrigerant may migrate to cooler, buried section during
extended periods of system shutdown. This causes
refrigerant slugging and could possibly damage the
compressor at start-up.
TORQUE
(ft-lb)
Fig. 19 — Flared Walls are Equal
3
Adjustable wrench or torque wrench
Outdoor end
Indoor end
Fig. 20 — Tightening Connections
1
2
—10—
V. STEP 5 — MAKE ELECTRICAL CONNECTIONS
WAR NING : Unit cabinet must have an uninter-
rupted, unbroken electrical ground to minimize the
possibility of personal injury if an electrical fault
should occur. This ground may consist of electrical
wire connected to unit ground lug in control compartment, or conduit approved for electrical ground when
installed in accordance with NEC, and local electrical
codes. Failure to follow this warning could result in the
installer being liable for the personal injury of others.
CAUTION: Unit failure as a result of operation on
improper line voltage or excessive phase imbalance
constitutes abuse and may cause damage to electrical
components. Such operation would invalidate any
applicable Bryant warranty.
WAR NING : Electrical shock can cause personal
injury and death. Shut off all power to this equipment
during installation. There may be more than one disconnect switch. Tag all disconnect locations to alert
others not to restore power until work is completed.
See Tables 6A and 6B for electrical information.
A. Units With Electric Heater
The unit is equipped with two thermostats: one with automatic reset and one with manual (electric) reset that can be
reactivated by switching the power supply off and then
back on.
B. Power Wiring (Fig. 21-26)
The unit is factory wired for voltage shown on nameplate.
Provide adequate, fused disconnect switch within sight from
unit, readily accessible, but out of reach of children. Provision for locking the switch open (off) is advisable to prevent
power from being turned on while unit is being serviced. Disconnect switch, fuses, and field wiring must comply with the
NEC and local code requirements. Use copper wire only
between the disconnect switch and unit. Use minimum 60 C
wire for the field power connection.
Remove the external box cover. Route the low voltage wires
from the outdoor unit to the indoor unit:
7
1. Place wiring through
/8 in. knockouts on the left or
right hand side of external control box (low voltage
side).
2. Connect the R and Y wires to the 2 pin terminal block
for cooling only units (619FNF) and heat pump units
(619FNQ) that are matched to 538ENF outdoor units.
3. Connect the R, Y, O, G, DT, A, and B wires to the
(PGB-1) 1 terminal for 619FNQ indoor units matched
with 538QNF outdoor units.
Route the line power leads from the indoor disconnect to the
fan coil unit.
7
1. Place wiring through
/8 in. or 11/8 in. knockouts on
the left and on the right hand side of external control
box (high voltage side).
2. Connect L1 to the black wire and L2 to the red wire
using wire nuts and fix the ground wire between the
2 washers.
See Fig. 27 for a view of the internal control panel. The internal control panel can be accessed by opening the grille and
removing the metal cover attached by four screws.
NOTE: The internal control panel does not need to be
accessed during the installation process unless there is a
need for service.
Table 6A — 619FNF Fan Coil Electrical Data
VO LTAGE
SYSTEM
SIZE
018 208/230-1-60 187 253 0.55 120 0.06 0.01 0.8 15 14
024 208/230-1-60 187 253 0.50 110 0.06 0.01 0.7 15 14
030 208/230-1-60 187 253 0.95 210 0.06 0.01 1.3 15 14
036 208/230-1-60 187 253 0.95 210 0.06 0.01 1.3 15 14
AWG — American Wire Gage
FLA — Full Load Amps
MCA — Minimum Circuit Amps per NEC Section 430-24
MOCP — Maximum Overcurrent Protection
NEC — National Electrical Code
V-P H- Hz
LEGEND *Permissible limits of the voltage range at which unit will operate
RANGE*
Min Max FLA
FAN
Motor Power
(Watts)
CONDENSATE
PUMP FLA
satisfactorily.
NOTE: In compliance with NEC requirements for multimotor and combina-
tion load equipment (refer to NEC Articles 430 and 440), the overcurrent protective device for the unit shall be fuse or equipped with a breaker.
LOUVER
MOTOR FLA
POWER
MCA MOCP
Table 6B — 619FNQ Fan Coil Electrical Data
VOLTAGE
SYSTEM
SIZE
018 208/230-1-60 187 253 0.50 110.0 0.06 0.01 3 12.5 16.3 20 12
024 208/230-1-60 187 253 0.50 110.0 0.06 0.01 3 12.5 16.3 20 12
030 208/230-1-60 187 253 0.95 210.0 0.06 0.01 3 12.5 16.9 20 12
036 208/230-1-60 187 253 0.95 210.0 0.06 0.01 3 12.5 16.9 20 12
AWG — American Wire Gage
FLA — Full Load Amps
MCA — Minimum Circuit Amps per NEC Section 430-24
MOCP — Maximum Overcurrent Protection
NEC — National Electrical Code
V-P H- Hz
LEGEND *Permissible limits of the voltage range at which unit will operate
RANGE*
Min Max FLA
FAN
Motor Power
(Watts)
CONDENSATE
PUMP FLA
satisfactorily.
NOTE: In compliance with NEC requirements for multimotor and combina-
tion load equipment (refer to NEC Articles 430 and 440), the overcurrent protective device for the unit shall be fuse or equipped with a breaker.
LOUVER
MOTOR FLA
ELECTRIC
HEATERS
kW FLA MCA MOCP
POWER
MIN WIRE
SIZE
AWG
MIN
WIRE
SIZE
AWG
—11—
Ground
Connection
Room Controller
Connections
Outdoor Unit
Connections
Power
Connections
Low
Voltage
Fig. 21 — 619FNF Unit Matched to 538ENF Outdoor Unit — Wiring Connection
(Cooling Only System)
High
Voltage
—12—
Ground
Connection
Room Controller
Connections
Outdoor Unit
Connections
Power
Connections
Low
Voltage
High
Voltage
Fig. 22 — 619FNQ Unit Matched to 538ENF Outdoor Unit — Wiring Connection
(Cooling with Electric Heat System)
—13—
Ground
Connection
Room Controller
Connections
Outdoor Unit
Connections
Power
Connections
Low
Voltage
High
Voltage
Fig. 23 — 619FNQ Unit Matched to 538QNF Outdoor Unit — Wiring Connection
(Heat Pump System)
—14—
NOTE 4
NOTE 5
YA
LPSID
C-
M
T
A-MTLIO
RI
UDOM
TNOC
"D" RAL
BCP1 LOR
NOTE 6
REPPOC ERAB
U OT
SID TI
N
.PIUQE
DN
G
TCENNOC
LBAC ESU(
)DEDIVORP E
8
ETON
1PCB — Main Control Printed
2PCB — Display Board
C—Contactor
CAP — Capacitor
CH — Crankcase Heater
CHS — Crankcase Heater Switch
COMP — Compressor
CRC — Carrier Room Controller
DP — Drain Pump
EQUIP.
GND
FC — Fan Capacitor
FS — Float Switch
GND — Ground
HPS — High Pressure Switch
IFM — Indoor Fan Motor
IR — Infrared
ITP — Indoor Test Point
LLPS — Liquid Low Pressure
LM — Louver Motor
LMS — Louver Micro Switch
Circuit Board
— Equipment Ground
Switch
BOLG 619FNF
C
LEGEND
OFM — Outdoor Fan Motor
OL — Overload
S—Emergency
TB — Terminal Block
TM — Sensor
TRAN — Tr an s f or m e r
Terminal (Marked)
Terminal (Unmarked)
Splice
Terminal Block
Factory Wiring
Field Control Wiring
Field Power Wiring
Accessory or Optional Wiring
Plug Connector
LA
ROODTUO 538ENF
O
C
ETTESSA
RESNEDN
TON
7
E
QE
DNG PIU
NOTES:
1. If any of the original wire furnished must be replaced, it must be
replaced with Type 90° C wire or its equivalent.
2. Wire in accordance with National Electrical Code (NEC) and local
codes.
3. Compressor and fan motors are protected by internal thermal
overloads.
4. Indoor unit transformer has internal 2A thermal fuse on the primary
side.
5. Infrared (IR) connection to be inserted on “J5” (replace the actual
factory-installed “CRC” connector) for IR option.
6. Terminal strip for Carrier Room Controller (CRC) connection.
7. Compressor crankcase heater installed on 538QNF035 and
538QNF030 only.
8. Outdoor unit transformer is factory wired for 230 v. For 208 v move
the black wire to the 208-v tap.
9. Use minimum 60° C wire for the field power wiring.
THERMISTOR EQUIVALENCE
TEMPERATURE RESISTANCE
°F °C Ω
95 35 6,500
72 22 11,400
2
TINU
A
O
C
T
T
SSA
OT
TE
C
32 0 32,500
NOTE: All thermistors are identical.
Fig. 24 — 619FNF/538ENF Cooling Only System Wiring Diagram
8
0
0
32/
V
HP1
) 9ETON EES(
ROODTUO OT
CENNOCSID
T
ETTESS
E
—15—
NOTE 4
NOTE 5
YALPSI
D
IOC
-MT
L
RIA-MT
D"
R
"
LUDOM
A
LORTNOC
C
B
P1
NOTE 6
E
REPPOC ERAB
N
OT
U
DNG .PIUQ
U(
C ES
TCENNOCSID TI
A
DEDIVORP ELB
)
N
1PCB — Main Control Printed
2PCB — Display Board
3PCB — Printed Circuit Board for
C—Contactor
CAP — Capacitor
CH — Crankcase Heater
CHS — Crankcase Heater Switch
COMP — Compressor
CRC — Carrier Room Controller
DP — Drain Pump
E-HTR — Electric Heater
EQUIP.
GND
FC — Fan Capacitor
FS — Float Switch
GND. — Ground
HPS — High Pressure Switch
IFM — Indoor Fan Motor
IR — Infrared
ITP — Indoor Test Point
LLPS — Liquid Low Pressure
LM — Louver Motor
Circuit Board
Electric Heat
— Equipment Ground
Switch
Fig. 25 — 619FNQ/538ENF Heat/Cool System Wiring Diagram with Electric Heaters
8 ETO
LEGEND
LMS — Louver Micro Switch
OFM — Outdoor Fan Motor
OL — Overload
S—Emergency
ST — Safety Thermostat
TB — Terminal Block
TM — Sensor
TRAN — Transformer
Terminal (Marked)
Terminal (Unmarked)
Splice
Terminal Block
Factory Wiring
Field Control Wiring
Field Power Wiring
Accessory or Optional Wiring
Plug Connector
538
LABOLG QNF619
A
C
ROODTUO FNE
ETTESS
RESNEDNOC
G PIUQE
N
DN
7 ETO
NOTES:
1. If any of the original wire furnished must be replaced, it must be
replaced with Type 90° C wire or its equivalent.
2. Wire in accordance with National Electrical Code (NEC) and local
codes.
3. Compressor and fan motors are protected by internal thermal
overloads.
4. Indoor unit transformer has internal 2A thermal fuse on the primary
side.
5. Infrared (IR) connection to be inserted on “J5” (replace the actual
factory-installed “CRC” connector) for IR control.
6. Terminal strip for Carrier Room Controller (CRC) connection.
7. Compressor crankcase heater installed on 538QNF035 and
538QNF030 only.
8. Outdoor unit transformer is factory wired for 230 v. For 208 v move
the black wire to the 208-v tap.
9. Use minimum 60° C wire for the field power wiring.
2
2/8
0
0
3
V
HP1
EES(
E
TON
) 9
OT
TUO
O
OD
U
O
T
R
TI
D
N
TCENNOCSI
TTESSAC OT
E
ETTESSAC
THERMISTOR EQUIVALENCE
TEMPERATURE RESISTANCE
°F °C Ω
95 35 6,500
72 22 11,400
32 0 32,500
NOTE: All thermistors are identical.
—16—
NOTE 4
NOTE 5
D
A
LPSI
Y
RIA-
MT L
IOC-MT
A
UDOM
"D" R
L
BCP1 LORTNOC
NOTE 6
S
RFED RDTUO
T
O
B
C
ERA
REPPO
ID
INU OT
T
NG .PIUQE
D
C ESU(
TCENNOCS
R
E
P
)DEDIVO
LBA
1PCB — Main Control Printed
2PCB — Display Board
3PCB — Printed Circuit Board for
C—Contactor
CAP — Capacitor
CH — Crankcase Heater
CHS — Crankcase Heater Switch
COMP — Compressor
CRC — Carrier Room Controller
DFT — Defrost Thermostat
DP — Drain Pump
E-HTR — Electric Heater
EQUIP.
GND
FC — Fan Capacitor
FS — Float Switch
GND — Ground
HPS — High Pressure Switch
IFM — Indoor Fan Motor
IR — Infrared
ITP — Indoor Test Point
LLPS — Liquid Low Pressure Switch
LM — Louver Motor
LMS — Louver Micro Switch
Circuit Board
Electric Heat
— Equipment Ground
Fig. 26 — 619FNQ/538QNF Heat Pump System Wiring Diagram with Electric Heaters
TON
8
E
LEGEND
OAS — Outdoor Air Sensor
OFM — Outdoor Fan Motor
OFR — Outdoor Fan Relay
OL — Overload
RVS — Reversing Valve Solenoid
S—Emergency
ST — Safety Thermostat
TB — Terminal Block
TM — Sensor
TRAN — Tr an s f or m e r
Terminal (Marked)
Terminal (Unmarked)
Splice
Terminal Block
Factory Wiring
Field Control Wiring
Field Power Wiring
Accessory or Optional Wiring
Plug Connector
SA
OLG 619FNQ
C LAB
T
O
538QNF
U
ETTES
ESNEDNOC ROOD
R
N
T
O
NOTES:
1. If any of the original wire furnished must be replaced, it must be
2. Wire in accordance with National Electrical Code (NEC) and local
3. Compressor and fan motors are protected by internal thermal
4. Indoor unit transformer has internal 2A thermal fuse on the primary
5. Infrared (IR) connection to be inserted on “J5” (replace the actual
6. Terminal strip for Carrier Room Controller (CRC) connection.
7. Compressor crankcase heater installed on 538QNF035 and
8. Outdoor unit transformer is factory wired for 230 v. For 208 v move the
9. Use minimum 60° C wire for the field power wiring.
DNG PIUQE
7
E
T
O
C
T
T
OT
replaced with Type 90° C wire or its equivalent.
codes.
overloads.
side.
factory-installed “CRC” connector) for IR option.
538QNF030 only.
black wire to the 208-v tap.
V032/802
HP1
) 9ETON EES(
U
A
SAC O
ROODTUO OT
TCENNOCSID TIN
ETTESSAC O
E
ESSAC OT
TT
TTESSAC OT
E
ETTESS
S
ETTE
ETTESSAC OT
ETTESSAC
ETTESSAC OT
THERMISTOR EQUIVALENCE
TEMPERATURE RESISTANCE
°F °C Ω
95 35 6,500
72 22 11,400
32 0 32,500
NOTE: All thermistors are identical.
—17—
CLR
CA
CG
CV
C G
CP
CV
CP
CLR
CA
INTERNAL CONTROL PANEL
619FNF018
Capacitor
GMC board
Electric heater board
(only on models with electric heater)
Transformer
Holes for fixing panel in position
Emergency push-button
Fig. 27 — Internal Control Panel
INTERNAL CONTROL PANEL
619FNF024, 03036
619FNQ01824, 03036
CV
Fan connector
LR
C
LED/RECEIVER connector
Float connector
G
C
CP
Pump connector
CA
Louver connector
—18—
C. Wiring the Room Controller
The room controller is capable of controlling from 1 to 6 fan
coil units. The total run length of the wire connecting the
room controller to the fan coil units should be kept to under
500 feet. Wire the room controller to the unit using daisy
chain wiring. See Fig. 28. The room controller connects to
the receiver board connection on the electronic board inside
the unit.
Wiring the Power Connection to the Room Controller
The thermostat will be powered by unregulated nominal
12.5 volts DC (10V min to 20V max) which is provided by the
electronic board inside the unit. The power consumption will
be 50 mA 12.5 volts DC. For applications where more than
one fan coil unit is to be controlled, the fan coil unit closest to
the room controller will be the only one that supplies power
to the room controller. The control should be protected from
damage in case of accidental wiring of power, ground and
signal wiring occurs.
Wiring the Room Controller to the Indoor Unit
Loosen the screws of terminals P (DC Power), G (GROUND)
and C (SIGNAL) on the indoor unit and room controller
terminal blocks. Refer to Fig. 29 and connect the indoor unit
terminal block to the room controller terminal block.
REMOTE
FCU 1
FCU 2
FCU 3
FCU 6
Fig. 28 — Room Controller Daisy Chain Wiring
Red
Black
White
Remote connector
(J5) 5 pins
A
Indoor unit
B
Room Controller
A
Fig. 29 — Wiring the Room Controller to
(Multidrop)
Diagram 1
P
G
C
Main electronic card
4 pins terminal block placed on external
control box
Wires supplied by the installer
Terminal block in the Room Controller
the Indoor Unit
P
G
B
C
INSTALLATION OPTIONS
The 619FNF, FNQ units can be used to cool an adjacent
room or for fresh-air ventilation. Plan the installation carefully. Measure carefully and follow acceptable building practices and the National Electric Code (NEC).
I. FRESH AIR INTAKE
1. Using Fig. 30, locate and remove the factory-installed
insulation from the side of the unit where the
pre-punched knockouts are located.
2. Remove the pre-punched knockouts for fresh air
intake. Refer to Fig. 30. Be careful not to damage
internal parts such as the heat exchanger coil.
3. If installing a 619FNF018 unit, install baffle. Refer to
Fig. 30.
4. Install ductwork using field-supplied, insulated flex
duct, or insulated sheet metal suitable for working
temperatures up to 140 F. Conduits can be of flexible
polyester (with spiral core) or corrugated aluminum,
externally covered with anti-condensate material
1
(fiberglass from
/4 in. to 1 in. thickness).
5. Use Fig. 31 to determine the allowable static pressure loss for the ductwork airflow. The ductwork
design must not exceed this value or the job airflow
requirements will not be met.
6. Use a field-supplied fan if airflow does not meet job
requirements. The field-supplied fan motor for outside air intake must be controlled by a bipolar ON/
OFF switch with safety fuses.
IMPORTANT: Ventilated air must not exceed 10% of the total
airflow or problems with operation will result. If the ventilated air surpasses 10% of the total airflow, a field-supplied
primary air treatment system with separate deflectors is
recommended.
7. Install an air inlet grille with filter inspection port to
prevent dust and dirt from entering and fouling the
indoor unit heat exchanger. Filter installation also
makes the installation of a duct closing damper during shutdown periods unnecessary.
8. All non-insulated ducts must be covered with anticondensate insulation (such as expanded neoprene,
1
/4 in. thickness).
II. CONDITIONED AIR SUPPLY TO ADJACENT ROOM
Air supply to an adjacent room requires that the outlet corresponding with the duct is closed, using the air supply outlet
obstruction accessory kit.
NOTE: The accessory kit cannot be used in units equipped
with an electric heater.
An air inlet grille must be fitted (if possible near the floor)
between the air conditioned room (where the unit is situated) and the adjacent room or, alternatively, the door must
be undercut, as shown in Fig. 30. The duct lengths can be
calculated in accordance with Fig. 30, also taking into
account the pressure drop through air diffusers and fresh air
filters.
IMPORTANT: DO NOT use active carbon or electrostatic
filter kits for ducts towards adjacent rooms.
—19—
4.72”
(120)
4.14”
(105)
B
(49)
1.93”
Ø C
Note:
NOTE: Dimensions in ( ) are in mm.
Dimensions in ( ) are in mm.
ØA
8.5
0”
(216)
Air intake grille
ØA
Duct connection flange
Clip
Unit 619FNF018
Ø A 5-29/32"(150 mm) 5-29/32"(150 mm)
B 4-3/4"(120 mm) 4-3/4"(120 mm)
Ø C 2-3/4"(70 mm) 3-15/16"(100 mm)
619FNF024, 03036
619FNQ01824, 03036
1/4" (6 mm) neoprene gasket
Insulated flexible duct
Fresh air intake
Conditioned air supply to an
adjacent room
Polystyrene partition
Baffle (619FNF018 only)
Frame
Wall
Undercut door
Wall-fitted grille
Door-fitted grille
Fig. 30 — Installation Options
Supply air duct to adjacent room
0.18
0.16
erusserp citats lanretxE (in.wg)
0.14
0.12
0.1
619FNF, FNQ03036
0.08
0.06
0.04
619FNF018, 024
619FNQ01824
0.02
0
0
50
100
150 200
250
Airflow (cfm)
NOTE: When two louvers are closed, the fresh airflow towards the adjacent room is 50% higher than when
one louver is closed (with equal static external pressure).
Fig. 31 — Pressure Drop for Conditioned Air Supply to an Adjacent Room: One Louver Closed
—20—
III. ROOM CONTROLLER CONFIGURATION SETUP
To configure the room controller, press the Mode button for
5 seconds. After 5 seconds, “10” will appear. This indicates
that the user is setting the first software configuration item.
To display the value of configuration item 10, press the Mode
button again. The value of the Heat/Cool vs Cooling only
remote configuration will be displayed along with the “Set
Temp” icon to indicate that the number displayed is the configuration data. Refer to Table 7 for configuration values. To
change the Heat/Cool vs Cooling only remote Configuration,
press the Up and Down buttons. To move to the next setting,
press the Mode button again and the “10” will be displayed.
Press the up button and the display will change to “11.”
Refer to Fig. 32. The Mode button will toggle the display
between the items and the configuration value. The Up and
Down buttons will change either the index or the value,
whichever is displayed at the time. Press the Fan button to
exit the Configuration Setup Mode. This mode will exit automatically after 10 seconds of inactivity. Once a configuration
value is changed, the last value displayed will be the new
configuration value for the room controller.
NOTE: The only way to abort a configuration change is to
change the value back to its original value.
Table 7 — Room Controller Configuration Values
ITEM VALUE DESCRIPTION
10
11
12
* Factory default.
H* Heat/Cool Remote
C Cooling Only Remote
On
Of*
C*
F
Room Thermistor Override
Active.
Control and display room air
temperature at the room controller. Room Thermistor Override Inactive. Do not display
room air temperature at the
room controller and control to
unit room air thermistor(s).
Temperatures displayed in
degrees Celsius.
Temperatures displayed in
degrees Fahrenheit.
1. Configuration Item 10: Heat Pump vs Cooling Mode
H — The Room Controller will allow and display the
following modes:
•Off
•Fan
•Auto
•Cool
•Dry
•Heat
C — The Room Controller will allow and display the
following modes:
•Off
•Fan
•Cool
•Dry
2. Configuration Item 11: Room Thermistor Override
On — Room Thermistor Override is active. Units will
be controlled to the air temperature displayed via the
Room Controller.
Of (Off) — Room Thermistor Override is not active.
All units will be controlled to the room air thermistors located on the units.
3. Configuration Item 12: Celsius vs Fahrenheit
C — Temperatures will be displayed in degrees
Celsius.
F — Temperatures will be displayed in degrees
Fahrenheit.
IV. LOUVER MODE SELECTION
To enter louver mode selection, ensure the room controller is
on and then press the Fan button for 5 seconds. After 5 seconds, the selected louver setting will be displayed. Press the
up and down arrows to modify the louver setting between
swing and auto. Refer to Fig. 33. The two settings will be displayed as follows:
S with Swing Louver Icon Represents the swing louver
A with Auto Louver Icon Represents the auto louver
The fan icon will also be displayed in the louver mode. Press
Fan button to exit the Louver Mode selection. This mode will
exit automatically after 10 seconds of inactivity. The only
way to abort a louver change is to change the value back to
its original value.
NOTE: If units are grouped to one room controller, all units
will have the same louver value. Louver Mode selection is
not available during OFF mode.
V. MAIN BOARD CONFIGURATION
To configure the main electronic board, push the Up and
Down arrows for 5 seconds while the room controller is off.
After 5 seconds, a “20” will appear. This indicates that the
user is setting the first software configuration item. To check
the value of configuration item “20,” press the Mode button.
The value for the Heat Pump/AC Only configuration will be
displayed. To change the value, use the Up and Down
buttons. Once the desired value is selected, press the Fan
button to send that configuration data to the unit. Refer to
Table 8.
Keep it pressed for
at least 5 seconds
Check the
value
A
up
down
Fig. 32 — Room Controller Configuration Steps
—21—
Change the
value
To check/change
the values of items
11 and 12 go back
to point A
up
down
Next
item
Room Controller
ON
Keep it pressed
for 5 seconds
up
down
To change
the value
Fig. 33 — Selecting the Louver Mode
Automatic
(AUTO)
Or
Continuous
movement
(swing)
Table 8 — Modular Platform D Unit Configuration Values
ITEM VALUE COMMENT
20
21 1-199 in increments of 1
22 0-199 in increments of 1
24
1: Heat Pump
0: AC only (indoor unit with
or without electric heaters)
0: Start in Off mode
1: Start in last active mode
Unit Configuration
defaults to heat pump
CCN Address of the unit.
Defaults to 1.
To display the hundreds,
push .
Zone number Communications zone
the system is located in
Defaults to 0
To display the hundreds,
push .
Auto Restart
Defaults to “On”
Only the current value being displayed is transmitted. Once
the Fan button is pressed, the room controller will switch to
displaying the configuration item number. To move to the
next setting, press the Mode button again and the “20” will
be displayed. Press the Up button and the display will
change to “21.” The Mode button will toggle the display
between the software configuration item number (i.e., “20,”
“21,” etc.) and the configuration value. The Up and Down
buttons will change either the item number or the value,
whichever is displayed at the time.
This mode will exit automatically after 30 seconds of
inactivity.
NOTE: If units are grouped to one room controller, all units
will have the same configuration value.
VI. SERVICE TEST MODE
Prior to start-up, conduct the Service Test mode to ensure
the unit is ready for start-up.
There is a hidden Service Test mode that is initiated through
a combination of button presses when the remote is off. The
following buttons need to be pressed, in sequence, within
6 seconds:
1. Down arrow
2. Fan button
3. Up arrow
4. Fan button
5. Mode button
Once in Service Test mode, the Service Test mode message
will be sent, and Sr will be displayed in the temperature
icons until the Down button is pressed. During Service Test
mode all the icons are off, and the only button that is active
is the Down button. To cancel Service Test mode, press the
Down button to send a message of Off mode to the unit. Service Test mode automatically times out after 30 minutes and
the remote will operate normally.
When test mode is selected, the unit will operate as
described below:
• The Unit Status (Green) and Timer (Yellow) LEDs blink
every 2 seconds.
• The indoor fan will operate according to user-selected
speed. If user-selected speed is Auto, the fan will run in
High speed.
• If the unit is configured as an A/C Only unit, it will operate in cool mode with demand.
• If the unit is configured as a Heat Pump unit, the louver
will operate according to user-selected position. If user
selected louver is Auto, louver operates according to auto
heat or cool louver based on operating mode.
• The unit will run in cool mode for 3 minutes, then it will
run in heat mode for 2 minutes, or until the indoor coil is
greater than 104 F. The unit will run in cool mode until
test mode is exited.
Any of the following will cancel the Service Test mode:
• When the unit is turned off by the controller.
• If the power is cycled during the Test Mode, the unit will
return to its normal operating mode.
• After 30 minutes of receiving the last valid test request
message.
•Fail Mode.
START-UP
The following checks should be made before system start-up.
Refer to outdoor unit Installation, Start-Up, and Service
manual for system start-up instructions and refrigerant
charging methods. Be sure to use the refrigerant charge
shown in Table 3.
1. Check condensate drainage system.
a. Remove grille and frame from the unit.
b. On the opposite side of the drain connection,
insert a water bottle up into the fan coil unit and
fill drain pan. Refer to Fig. 34. Water must flow
regularly with condensate pump energized. If
water does not, check the pipe slope or see if
there are any pipe restrictions.
NOTE: The unit is equipped with a safety float
switch to deenergize the compressor if the drain
water level gets too high.
2. Make sure that all wiring connections are correct and
that they are tight.
3. Make sure that all barriers, covers, and panels are in
place.
—22—
Fig. 34 — Inserting Water into Drain Pan
4. Ensure that the filters and return air grilles have
been installed and that the discharge louvers are
correctly positioned.
CAUTION: Never operate unit without a filter or
with grille removed. Damage to the unit or personal
injury may result.
SERVICE AND MAINTENANCE
Remove unit grille, filter, and condensate pan for cleaning,
lubricating, or replacing parts.
CAUTION: To avoid personal injury or damage to
unit, do not service until all power sources are shut
down, locked out, and tagged out. Failure to do so could
result in personal injury or unit damage.
I. MINIMUM MAINTENANCE
1. Check, clean, or replace air filter each month or as
required.
2. Check cooling coil, drain pan, condensate trap, and
condensate drain pan each cooling season for cleanliness. Clean as necessary.
3. Check fan motor and wheel for cleanliness each heating and cooling season.
4. Check electrical connections for tightness and controls for proper operation each heating and cooling
season. Service as necessary.
II. SERVICE
A. To Clean or Replace Air Filters
1. Place a plastic sheet on the floor to catch any water
that may spill from drain pan.
2. Slide filter out.
3. Vacuum clean or wash filter with soapy water. Rinse
and let air dry. If filter needs replacing, filters are
available from the local dealer.
CAUTION: If air filter is not replaced in the unit,
dust and dirt gather in air conditioner and operation
becomes impaired.
B. To Clean or Replace Drain Pan
1. Place a plastic sheet on the floor to catch any water
that may spill from drain pan.
2. Remove the air intake and distribution assembly.
Remove the condensate water in the drain pan by
pulling out the rubber drain plug and letting water
drain into a 3-gallon bucket.
CAUTION: Do not use a screw driver to pry drain
pan out of assembly. It could damage the pan.
3. Remove screws holding the drain pan. Carefully hold
the drain pan to remove it from the assembly.
4. Reinstall the drain pan using the appropriate number of screws. Center and align the metal fan inlet
orifice with the fan. Ensure the fan spins freely.
TROUBLESHOOTING
See Table 9 and Fig. 35 for troubleshooting information.
I. FAULT CODE
Once a failure occurs with the indoor unit in operation, the
green LED on the indoor unit flashes at intervals of 0.5 seconds. The fault code is deduced from the number of times the
green LED flashes, blocking unit operation. Between one
flash cycle and the next one, a pause of 5 seconds elapses.
See Fig. 35.
Table 9 — Fault Codes
CODE DESCRIPTION
2 Condensate discharge pump
3 Room air sensor fault
4 Indoor unit coil sensor fault
6* Filter dirty
7 Outdoor unit failure
10 EEPROM corrupt
11 Card serial number damaged
12 Address or zone incomplete
13 Gas flow distributor corrupt
14 Outdoor air thermistor fault
*When code is enabled.
A. Using the Emergency Button
The Emergency button is for use by a qualified service technician only. The Emergency button is for use when the room
controller is inoperative. Use a screwdriver to press the
emergency button through the metal protection grille. See
Fig. 35.
Emergency Operation
When the unit is in the OFF mode and the Emergency button is pressed for 5 seconds, the unit will operate as follows:
•Automatic mode
• temperature preset to 72 F
• automatic fan speed
• louvers set automatically according to the operating mode
• Timer function is cancelled
• buzzer beeps
When the unit is ON and the Emergency button is pressed
for 5 seconds, the unit will operate as follows:
• the unit is turned off
• buzzer beeps
When a signal is received by the remote control, the unit
operates accordingly.
—23—
Red
LED
Green
Yellow
LED
Remote control
signal receiver
LED
Emergency
Button
Fig. 35 — Warning Lamps and Emergency Button
Copyright 2006 Bryant Heating & Cooling Systems Printed in U.S.A. CATALOG NO. 02-619F0001-II
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