Bryant 619REQ012CBMA User manual

619R*C
Cassette Ductless System
Sizes 09 to 18
Installation Instructions
NOTE: The images in this manual are for illustration purposes
only. The actual model may differ slightly.
NOTE: Read the entire instruction manual before starting the
installation.
TABLE OF CONTENTS
PAGE
SAFETY CONSIDERATIONS 2.........................
PARTS LIST 3.......................................
SYSTEM REQUIREMENTS 4...........................
DIMENSIONS −INDOOR 5............................
CLEARANCES −INDOOR 6...........................
INSTALLATION TIPS 7................................
INDOOR UNIT INSTALLATION 7.......................
ELECTRICAL DATA 13...............................
CONNECTION DIAGRAMS 13.........................
START−UP 15........................................
TROUBLESHOOTING 16..............................

2
SAFETY CONSIDERATIONS
Installing, starting up, and servicing air−conditioning equipment
can be hazardous due to system pressures, electrical components,
and equipment location (roofs, elevated structures, etc.).
Only trained, qualified installers and service mechanics should
install, start−up, and service this equipment.
Untrained personnel can perform basic maintenance functions such
as cleaning coils. All other operations should only be performed by
trained service personnel.
When working on the equipment, observe precautions in the
literature and on tags, stickers, and labels attached to the
equipment.
Follow all safety codes. Wear safety glasses and work gloves. Keep
a quenching cloth and fire extinguisher nearby when brazing. Use
care in handling, rigging, and setting bulky equipment.
Read these instructions thoroughly and follow all warnings or
cautions included in the literature and attached to the unit. Consult
the local building codes and National Electrical Code (NEC) for
special requirements. 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 these 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.
!WARNING
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal
injury or death.
Before installing, modifying, or servicing system, the
main electrical disconnect switch must be in the OFF
position. There may be more than 1 disconnect switch.
Lock out and tag switch with a suitable warning label.
EXPLOSION HAZARD
Failure to follow this warning could
result in death, serious personal injury,
and/or property damage.
Never use air or gases containing
oxygen for leak testing or operating
refrigerant compressors. Pressurized
mixtures of air or gases containing
oxygen can lead to an explosion.
!WARNING
CAUTION
!
EQUIPMENT DAMAGE HAZARD
Failure to follow this caution may result in equipment
damage or improper operation.
Do not bury more than 36 in. (914 mm) of refrigerant pipe
in the ground. If any section of pipe is buried, there must be
a 6 in. (152 mm) vertical rise to the valve connections on
the outdoor units. If more than the recommended length is
buried, refrigerant may migrate to the cooler buried section
during extended periods of system shutdown. This causes
refrigerant slugging and could possibly damage the
compressor at start−up.

3
PARTS LIST
Table 1—Parts List
PART NO. PART NAME
1Air flow louver (at air outlet)
2Drain pump (drain water from the indoor unit)
3Drain pipe (Field Supplied)
4Air outlet
5Air filter (inside grille/ceiling panel)
6Air inlet
7Grille/Ceiling panel (Required - sold separately)
8Display panel
9Remote controller
10 Refrigerant pipe (Field Supplied)
Fig. 1 - Parts List
Note:
- If the outdoor unit is higher than the indoor unit, prevent rain from flowing into the indoor unit, along the connection pipe, by creating a downward arc
in the connection pipe before it enters the wall to the indoor unit. This ensures that rain drips from the connection pipe before entering the wall.
- Piping and the interconnecting wiring are field supplied.
- Fig.1 is only a sketch. Different models may differ slightly.
See Table 2 for the units covered in these installation instructions.
Table 2—Indoor Units
kBTUh V-Ph-Hz ID Model No.
9 208/230-1-60 619REQ009CBMA
12 208/230-1-60 619REQ012CBMA
18 208/230-1-60 619REQ018CBMA

4
SYSTEM REQUIREMENTS
Allow sufficient space for airflow and unit servicing. See Fig. 3 for the minimum required distances between the unit and the walls or ceilings.
PIPING
IMPORTANT: Both refrigerant lines must be insulated separately.
SMinimum refrigerant line length between the indoor and outdoor units is 10 ft. (3 m).
STable 3 lists the pipe sizes for the indoor unit. Refer to the outdoor unit installation instructions for other allowed piping lengths and
refrigerant information.
Table 3—Indoor Unit Pipe Sizes
SYSTEM SIZE 9K 12K 18K
Piping Gas Pipe (size - connection type) In (mm) 3/8 (9.52) 1/2 (12.7) 1/2 (12.7)
Liquid Pipe (size - connection type) In (mm) 1/4 (6.35) 1/4 (6.35) 1/4 (6.35)
WIRING
All wires must be sized per NEC (National Electrical Code) or
CEC (Canadian Electrical Code) and local codes. Use the
Electrical Data table MCA (minimum circuit amps) and MOCP
(maximum over current protection) to correctly size the wires and
the disconnect fuse or breakers respectively.
Per the caution note, only stranded copper conductors with a 600
volt rating and double insulated copper wire must be used. The
use of BX cable is not recommended.
IMPORTANT: The use of BX cable is not recommended.
Recommended Connection Method for Power and
Communication Wiring −Power and Communication Wiring:
The main power is supplied to the outdoor unit. The field
supplied 14/3 power/communication wiring from the outdoor unit
to the indoor unit consists of four (4) wires and provides the
power for the indoor unit. Two wires are high voltage AC power.
One wire is communication wiring and the other is a ground wire.
Recommended Connection Method for Power and
Communication Wiring (To minimize communication wiring
interference)
Power Wiring:
The main power is supplied to the outdoor unit. The field
supplied connecting cable from the outdoor unit to the indoor unit
consists of three (3) wires and provides the power for the indoor
unit. Two wires are high voltage AC power and one is a ground
wire.
Communication Wiring:
A separate shielded stranded copper conductor only, with a 600
volt rating and double insulated copper wire, must be used as the
communication wire from the outdoor unit to the indoor unit.
Please use a separate shielded 16GA stranded control wire.
CAUTION
!
EQUIPMENT DAMAGE HAZARD
Failure to follow this caution may result in equipment
damage or improper operation.
SWires should be sized based on NEC and local codes.
SUse copper conductors only with a 600 volt rating and
double insulated copper wire.

5
DIMENSIONS −INDOOR
Panel
Gas side
Liquid side
4-install hanger
Body
Drain pipe
0.98(25)
Outside Air Intake
2.56(65)
25.47(647)
25.47(647)
1.97(50)
Drain hole
( for Service )
21.46(545)
22.44(570)
10.24(260)
2.67(68)
1.65(42)
6.18(157)
4.96(126)
1.73(44)
Wiring connection port
2.95(75)
E-parts box
4-Screw hole
(for install panel)
20.59(523)
22.44(570)
Wiring connection port
Fig. 2 - Indoor Unit
Table 4—Dimensions Indoor
UNIT SIZE 9 12 18
BODY PANEL BODY PANEL BODY PANEL
DIMENSIONS
Height in(mm) 10.24 (260) 1.97 (50) 10.24 (260) 1.97 (50) 10.24 (260) 1.97 (50)
Width in(mm) 22.44 (570) 25.47 (647) 22.44 (570) 25.47 (647) 22.44 (570) 25.47 (647)
Depth in(mm) 22.44 (570) 25.47 (647) 22.44 (570) 25.47 (647) 22.44 (570) 25.47 (647)
PACKING
Height in(mm) 11.42 (290) 4.84 (123) 11.42 (290) 4.84 (123) 11.42 (290) 4.84 (123)
Width in(mm) 25.79 (655) 28.15 (715) 25.79 (655) 28.15 (715) 25.79 (655) 28.15 (715)
Depth in(mm) 25.79 (655) 28.15 (715) 25.79 (655) 28.15 (715) 25.79 (655) 28.15 (715)
Weight-Gross lbs(kg) 41.88 (19) 9.92 (4.5) 41.88 (19) 9.92 (4.5) 46.3 (21) 9.92 (4.5)
Weight-Net lbs(kg) 35.27 (16) 5.51 (2.5) 35.27 (16) 5.51 (2.5) 39.68 (18) 5.51 (2.5)

6
CLEARANCES −INDOOR
Fig. 3 - Cassette Unit Clearance

7
INSTALLATION TIPS
Indoor Unit
Installation locations include:
SA location where no obstacles exist near the inlet and outlet
areas.
SA location which can bear the indoor unit’s weight is critical.
SDo not install the indoor units near a direct source of heat such as
direct sunlight or a heating appliance.
SA location which provides appropriate clearances (see Fig. 3).
SDo not install the indoor unit in a location with special
environmental conditions. For those applications, contact your
Ductless Systems representative.
INDOOR UNIT INSTALLATION
1. Obstructions should be removed from the indoor unit’s intake
or outlet vents so air can flow throughout the room.
2. Ensure the installation is in accordance with the schematic
diagram’s required clearances.
3. Select an install site that can withstand four times the indoor
unit’s weight and would not increase the operating noise.
4. Ensure the unit is level.
5. Select a location where condensated coagulated water can
drain easily away from the outdoor unit.
6. Ensure there is enough space for care and maintenance.
Ensure the height between the indoor unit and ground is ≥
3ft. (1m) or ≤16ft. (5m).
7. Ensure the install site can withstand a weight four times of
the unit’s. If not, reinforce the site prior to installation. Refer
to the install cardboard to determine where the location
should be reinforced.
IMPORTANT: To guarantee a good performance, the unit must be
installed by professional personnel in accordance with this manual.
IMPORTANT: Drilling holes in the ceiling must be performed by
professional personnel.
1
1
2
2
3
3
21.5in(545mm)
22.4in(570mm)
25.5in(647mm)
45
20.6in(523mm) 22.4in(570mm)
25.5in(647mm)
Fig. 4 - Drilling Holes
2.8in(70mm)
0.6in(15mm) 0.6in(15mm)23.6in(600mm)6
7
8
0.8in(20mm) 0.8in(20mm)
Unit: in (mm)
Fig. 5 - Drilling Holes
1. Installation hook pitch dimensions
2. Indoor unit dimensions
3. Decoration panel dimensions
4. Refrigerant piping
5. Installation hook (X4)
6. Ceiling opening dimensions
7. Hanger bracket
8. False ceiling
NOTE: Adjust the position to ensure the gaps between the indoor
unit and the four sides of the false ceiling are even. The indoor unit’s
lower part should sink into the false ceiling roughly 0.9in (24mm).
1
2
mm
4
2
ni9.0
Fig. 6 - Drilling Holes
1. Indoor unit
2. False ceiling
NOTE: Installation is possible with a ceiling dimension of 23.62
in. (600m) (marked with *). However to achieve a ceiling−panel
overlapping dimension of 0.59 in (15mm), the spacing between the
ceiling and the unit should be 0.79 in. (20mm) or less. If the
spacing between the ceiling and the unit is over 0.79 in. (20mm),
attach the sealing material in the part or recover the ceiling.

8
INDOOR UNIT MAIN BODY INSTALLATION
1. Prepare the ceiling opening needed for installation where
applicable (for existing ceilings).
a. Create the ceiling opening required for installation. From the
side of the opening to the casing outlet, implement the
refrigerant and drain piping and wiring for the remote
controller (unnecessary for the wireless type). Refer to each
piping or wiring section.
b. After creating an opening in the ceiling, it may be
necessary to reinforce the ceiling beams to keep the
ceiling level and to prevent it from vibrating. Consult
the builder for details.
2. Install the installation hooks. Use either a M8 or M10 bolt.
a. Use expansible hooks, sunken anchors or other field
supplied parts to reinforce the ceiling to bear the unit’s
weight.
b. Adjust the clearance from the ceiling before proceeding
further. For an installation example, see Fig. 7.
1
2
3
4
Fig. 7 - Installation Clearances
(1.) Ceiling slab
(2.) Expansible hook (optional)
(3.) Installation hook (optional)
(4.) False ceiling
NOTE: For a non−standard installation, contact your dealer for
details.
When installing optional accessories, review the optional
accessories list in the installation manual. Depending on field
conditions, it may be easier to install optional accessories before
the indoor unit is installed (except for the decoration panel).
However, for an existing ceiling, install the fresh air inlet
component kit (field Supplied) before installing the unit.
3. Install the indoor unit temporarily.
a. Attach the hanger bracket to the suspension bolt. Be sure
to fix it securely by using a nut and washer from the upper
and lower sides of the hanger bracket.
b. Secure the hanger bracket (see Fig. 8).
-
1
3
4
2
Fig. 8 - Secure the Hanger Bracket
(1.) Nut (field supply)
(2.) Washer (field supply)
(3.) Hanger bracket
(4.) Double nuts (field supply, tighten)
4. Adjust the unit to the right position for installation.
5. Check if the unit is horizontally leveled.
a. Do not install the unit tilted. The indoor unit is
equipped with a built−in drain pump and a float switch.
NOTE: If the unit is tilted against the direction of the condensate
flow (the drain piping side is raised), the float switch may
malfunction and cause water to drip.
b. Check if the unit is level at all four corners with a water
level or a water−filled vinyl tube (see Fig. 9).
Fig. 9 - Ensure unit is level
(1.) Water level
(2.) Vinyl tube

9
DRAIN PIPING WORK
Drain Piping Installation
Install the drain piping (see Fig. 10) and take steps to eliminate
condensation. Improperly rigged piping could lead to leaks and
eventually wet furniture and belongings.
1-1.5m 1
2
3~5ft
Fig. 10 - Drain Piping Installation
Fig. 11 - Hanging Bar
(1.) Hanging bar
(2.) ≥1/100 gradient
Install the Drain Pipes
IMPORTANT: Observe all local sanitary codes when installing
condensate drains.
SKeep piping as short as possible and slope it downwards
at a gradient of at least 1/100 so that air does not remain
trapped inside the pipe.
SKeep the pipe size equal to or greater than that of the
connecting pipe (PVC pipe, nominal diameter 0.8 in.
(20mm), outside diameter .98 in. (25 mm)).
SPush the drain hose as far as possible over the drain
socket, and tighten the metal clamp securely.
Fig. 12 - Push the Drain Hose
1. Drain socket (attached to the unit)
2. Metal clamp
3. Drain hose
4. Insulation (field supply)
a. Insulate the drain hose inside the building.
b. If the drain hose cannot be sufficiently set on a slope, fit
the hose with the drain raising piping (field supplied).
c. Ensure the heat insulation work is executed on the
following two spots to prevent any possible water
leakage due to dew condensation:
(1.) Indoor drain pipe
(2.) Drain socket.
Unit: mm
1
2
57~0
5
1~1.5m
300/11.8in
654
3
n
i
7.8/022
ni5
.
9
2/
0
57
ni3~0
n
i9.02/035
3~5ft
Fig. 13 - Drain Setup Pipe
1. Ceiling slab
2. Hanger bracket
3. Adjustable range
4. Drain raising pipe
5. Drain hose
6. Metal clamp
−Connect the drain hose to the drain raising pipes, and
insulate them.
−Connect the drain hose to the drain outlet on the indoor unit,
and tighten it with the clamp.
NOTE: Drain setup pipe:
SThe install height of the drain raising pipe should be less
than 21 in. (530 mm).
SThe drain raising pipe should form a right angle with the
unit. The distance to the unit should not exceed 11.81 in.
(300 mm).
STo prevent air bubbles, install the drain hose level at an
angle slightly tilted upward (</3 in / 75 mm).
SThe drain hose incline should be 3 in (75 mm) or less so
the drain socket does not have to withstand additional force.
STo ensure a downward slope of 1:100, install the hanging
bars every 3.3 ft. (1m) to /4.9 ft./(1.5 m).
SWhen unifying the multiple drain pipes, install the pipes as
shown in Fig. 14. Select the converging drain pipes whose
gauge is suitable for the operating capacity of the unit.
1 T-joint converging drain pipes
035-
0
0
01
1
1Unit: mm
Fig. 14 - T−Joint Converging Drain Pipes
SConnect the drain hose to the drain raising pipes, and
insulate them.
SConnect the drain hose to the drain outlet on the indoor
unit, and tighten it with the clamp.

10
DRAIN PIPE TESTING
After the piping work is finished, check if the drainage flows
smoothly.
Add approximately 1 liter of water gradually through the air
discharge outlet. See Fig. 15 for the water adding method.
12
ni9.3/001
Fresh air intake ( 65/2.6in)
106/4.2in
ni2.
4/
6
01
75/3in
65/2.6in
Unit: mm
Fig. 15 - Water Adding Method
1. Plastic watering can (tube) should be about 3.9 in (100 mm).
2. Water receiver.
When the electric wiring work is complete, check the drainage
flow during COOL running.
Electrical Wiring
1. Remove the indoor unit control box lid.
2. Follow the “Wiring Diagram” label attached to the indoor
unit’s control box lid to wire the outdoor unit, indoor unit
and the wired remote controller.
3. Securely fix the wires with a field supplied clamp.
4. Attach the outdoor unit cover.
1 Control box lid
2 Wiring diagram label
3 Power supply terminal block
4 Clamp for wiring
5 Wiring between units
6 Plastic cover
7 Clamp (field supply)
12
4
5
6
3
7
Fig. 16 - Wiring/Control Box