GE 7500 Series Owner’s Manual & Installation Instructions

TINSEA517JBRZ 49-7594-1 10-08 JR
Air Conditioners
Safety Instructions . . . . . . . . . . .2

Operating Instructions

Controls—Dip Switches . . . . . . . . .3–5
Controls—Terminal
Connections . . . . . . . . . . . . . . . . . . .6, 7
On/Off Switch . . . . . . . . . . . . . . . . . . . .8

Care and Cleaning

Air Filters . . . . . . . . . . . . . . . . . . . . . . . . .9
Base Pan . . . . . . . . . . . . . . . . . . . . . . . . .9

Installation Instructions

Electrical Supply . . . . . . . . . . . . .11–13
Installing the Zoneline . . . . . . .14–21
Preparation . . . . . . . . . . . . . . . . . . . . .10
Servicing . . . . . . . . . . . . . . . . . . . . . . . .22
Troubleshooting Tips . . . . . . .23
Normal Operating Sounds . . . . . . .24

Consumer Support

Consumer Support . . . . . .Back Cover
Warranty . . . . . . . . . . . . . . . . . . . . . . .27
Cool Only, Heat/Cool and
Heat Pump Models
7500 Series
Owner’s Manual and
Installation Instructions
ge.com
Write the model and serial numbers here:
Model # __________________
Serial # __________________
Find these numbers on a label on the front case panel.
Zoneline
®
Vertical
Printed in China

Consumer Support Troubleshooting Tips Care and Cleaning Operating Instructions Safety Instructions

IMPORTANT SAFETY INFORMATION. READ ALL INSTRUCTIONS BEFORE USING.
WARNING!
For your safety, the information in this manual must be followed to minimize the risk of fire, electric shock, or to prevent property damage, personal injury, or loss of life.
This Zoneline must be properly installed in accordance with the Installation Instructions before it is used. See the Installation Instructions in the back of this manual.
Replace immediately all electric service cords that have become frayed or otherwise damaged. A damaged power supply cord must be replaced with a new power supply cord obtained from the manufacturer and not repaired. Do not use a cord that shows cracks or abrasion damage along its length or at either the plug or connector end.
Product must be operated with the electrical plug supplied with the product. Do not replace the electrical plug supplied with the product.
If the receptacle does not match the plug, the receptacle must be changed out by a qualified electrician.
Unplug or disconnect the Zoneline at the fuse box or circuit breaker before making any repairs.
NOTE: We strongly recommend that any servicing be performed by a qualified individual.
All air conditioners contain refrigerants, which under federal law must be removed prior to product disposal. If you are getting rid of an old product with refrigerants, check with the company handling disposal about what to do.
SAFETY PRECAUTIONS
READ AND FOLLOW THIS SAFETY INFORMATION CAREFULLY.
SAVE THESE INSTRUCTIONS
2
Safety Instructions Operating Instructions Care and Cleaning Troubleshooting Tips Consumer Support
3
Controls–dip switches. ge.com
The dip switch controls are located behind the front case panel, through an opening on the front of the unit.
To access the dip switches, remove the front case panel by removing the filter, taking out the four front screws, the upper two screws from the top of the panel and the shipping screws on each side, if present. (Discard the two side shipping screws, if present).
NOTE: The owner is responsible for setting the appropriate dip switches and connecting terminals.
Controls–Dip Switches
Dip Switches
All Electric Heat (Heat pump models only)
When this switch is enabled (UP), heat pump operation is locked out, causing the unit to provide only electric resistance heat.
ALL I2R (All Electric Heat)
ALL I2R (All Electric Heat) (Heat-pump models only)
FREEZ S (Freeze Sentinel)
CONST FAN (Constant ON Fan)
TL1 (H) (Temp. Limit 1–Heat) TL2 (H) (Temp. Limit 2–Heat) TL3 (H) (Temp. Limit 3–Heat)
TL1 (C) (Temp. Limit 1–Cool) TL2 (C) (Temp. Limit 2–Cool) TL3 (C) (Temp. Limit 3–Cool)
No Function (Reserved for future use) DUCT (Blower Fan) OCCUPIED (Occupancy Sensor)
Side shipping screw
Side shipping screw
Consumer Support Troubleshooting Tips Care and Cleaning Operating Instructions Safety Instructions
4
Controls–dip switches.
Freeze Sentinel (Requires room air sensor kit–RAVRMS)
When this switch is enabled (UP), it turns OFF the freeze sentinel protection feature. With the switch disabled (DOWN), the freeze sentinel is activated which automatically provides heat without user interface. This helps to prevent plumbing damage by turning the heater and fans ON at 41° F and OFF at 46° F.
Constant ON Fan
When this switch is enabled (UP), it allows the fan to run continuously.
Occupancy Sensor
When this switch is enabled (UP), it allows the unit to utilize an infrared motion sensor and a door switch for occupancy detection. This feature allows an energy management system to be installed and operated in conjunction with the unit.
FREEZE S (Freeze Sentinel)
CONST FAN (Constant ON Fan)
OCCUPIED (Occupancy Sensor)
Duct
The duct select function allows the indoor fan to be operated at two variable fan speeds. When this switch is enabled (UP), the unit automatically selects either high or middle fan speed (for longer ductwork applications). When set in the down position, the unit is automatically operated in either the middle or low fan speed (for shorter ductwork applications).
DUCT (Blower Fan)
5
Safety Instructions Operating Instructions Care and Cleaning Troubleshooting Tips Consumer Support
ge.com
Temperature Limiting (Requires room air sensor kit–RAVRMS)
Temperature limiting can reduce energy costs by limiting the lowest temperature that can be set for cooling and the highest temperature that can be set for heating. Temperature limiting is controlled by switches 1–6 on the top block
of auxiliary controls. The first three switches are used to select the cooling limits. The next three switches are used to control the heating limits.
Temperature limiting during COOL mode
(all temperatures shown in °F)
UP DOWN Minimum Maximum
NONE 1, 2, 3 60° 85°
1 2, 3 64° 85°
1, 2 3 66° 85°
2 1, 3 68° 85°
2,3 1 70° 85°
1, 2, 3 NONE 72° 85°
1, 3 2 74° 85°
3 1, 2 76° 85°
Temperature limiting during HEAT mode
(all temperatures shown in °F)*
UP DOWN Minimum Maximum
NONE 4, 5, 6 60° 85°
4 5, 6 60° 80°
4, 5 6 60° 78°
5 4, 6 60° 76°
5,6 4 60° 74°
4, 5, 6 NONE 60° 72°
4, 6 5 60° 70°
6 4, 5 60° 65°
TL1 (C) (Temp. Limit 1–Cool) TL2 (C) (Temp. Limit 2–Cool) TL3 (C) (Temp. Limit 3–Cool)
TL1 (H) (Temp. Limit 1–Heat)* TL2 (H) (Temp. Limit 2–Heat)* TL3 (H) (Temp. Limit 3–Heat)*
* Not applicable to Cool-Only models
6
Consumer Support Troubleshooting Tips Care and Cleaning Operating Instructions Safety Instructions
Controls—terminal connections.
Controls–Terminal Connections
The terminal connections are located behind the front case panel through an opening on the front of the unit.
To access the terminal connections, remove the front panel by removing the filter, taking out the four front screws, the upper two screws from the top of the panel and the shipping screws on each side, if present. (Discard the two side shipping screws, if present.)
Insert the building hook-up wires into the bottom of the terminals and tighten screws securely to make the desired connections.
Route the wires from the terminal connections through the unit wire guides and out through the case wire guide.
NOTE: The owner is responsible for setting the appropriate dip switches and connecting terminals.
CAUTION:
Improper CDC wiring may damage the Zoneline electronics or cause erratic Zoneline operation. No common busing is permitted. A separate wire pair must be run from each separate controlling switch to each individual Zoneline.
Room Air Sensor (Requires room air sensor kit – RAVRMS)
When connected, the room air sensor will allow utilization of the temperature limiting and freeze sentinel features.
NOTE: If GE thermostat RAK148D1, RAK148P1 or RAK164D1, RAK164P1 is used with the unit, the room sensor kit is not needed for temperature limiting since this feature is incorporated in the thermostats.
Route wires through wire guides
Room Air Sensor
Motion Sensor
Door Sensor
Central Desk Control
Common–Ground White–Heater Yellow–Compressor Black–Reversing Valve Green–High Speed Fan Green–Low Speed Fan Red–24V AC only
Room Air Sensor
Terminal connections
Hydronic Heating (Requires Hydronic Heating Kit – RAVHW1, RAVHW2 or RAVHW3)
Required connections for hydronic heating kit. NOTE: R, W, C terminal connections will
also be connected to the remote thermostat if applicable.
Hydronic Heating
Remote Thermostat
The unit will be controlled by a remote thermostat.
IMPORTANT:
The Zoneline thermostat connections provide 24V AC only.
If using a digital/electronic wall thermostat, you must set it to the 24V AC setting. See the Installation Instructions for the wall thermostat.
CAUTION:
Damage to a wall thermostat or to the Zoneline electronics can result from improper connections. Exercise extra attention when connecting blue and black wires. No line voltage connections should be made to any circuit in the thermostat. Isolate all wires in building from line voltage.
7
Safety Instructions Operating Instructions Care and Cleaning Troubleshooting Tips Consumer Support
ge.com
Door Sensor (Obtained locally)
The Occupancy Sensor dip switch must be in the up position to use this feature.
When connected, the door sensor will detect when the door in the room is opened or closed. This feature must be used in conjunction with the motion sensor.
The door and motion sensors work together to automatically cycle the unit between normal and energy management operations.
Central Desk Control
When connected, the unit lock-out is released and it can be turned ON or OFF with a switch located at the Central Desk Control. A separate wire pair must be run from each separate controlling switch to each individual Zoneline.
Motion Sensor (Obtained locally)
The Occupancy Sensor dip switch must be in the up position to use this feature.
When connected, the wall mounted motion sensor will detect motion in the room and automatically cycle the unit between normal operation and energy management operation.
The door and motion sensors work together to automatically cycle the unit between normal operation and energy management operation.
Motion Sensor
Door Sensor
Central Desk Control
Red–24V AC only
Green–Low Speed Fan
Green–High Speed Fan
Black–Reversing Valve
Yellow–Compressor
White–Heater
Common–Ground
The ventilation control lever is located on the left side of the Zoneline unit, behind the front case panel.
To access the ventilation control lever, remove the front panel by removing the filter, taking out the four front screws, the upper two screws from the top of the panel and the shipping screws on each side, if present. (Discard the two side shipping screws, if present).
When the lever is in the CLOSE position, only the air inside the room is circulated and filtered.
When the lever is in the OPEN position, some outdoor air will be drawn into the room. This will reduce the heating or cooling efficiency.
To close the vent, push the vent lever handle down, pull it forward and lock it up in place.
To open the vent, push the vent lever handle down, push it back and lock it up in place.
Energy Tip: Keep the vent control in the CLOSE position. The room air will be filtered and circulated.
8
Consumer Support Troubleshooting Tips Care and Cleaning
Operating Instructions Safety Instructions
Other features of your Zoneline.
About Heat Pumps (on some models)
Heat pumps can reduce operating costs by exchanging heat from the outside air—even when the outside temperature is below freezing— and releasing that heat indoors.
To get the best economic benefit from your heat pump, don’t change the room thermostat setting very often. Raising the heat setting 2–3 degrees will cause the Zoneline to use its electric heating elements in order to reach the new temperature setting quickly.
There is a three minute minimum compressor run time at any setting to prevent short cycling.
The indoor fan motor starts before the compressor and stops after the compressor cycles off.
The electric heating elements use much more electricity than heat pumps and cost more to operate.

Ventilation Control

Vent control
(push lever down
and pull forward
or back to
operate)
Open
Close

On/Off Switch

The unit on/off switch is located on the front of the Zoneline.
To turn on the unit, press the top of the switch in. To turn off the unit, press the bottom
of the switch in.
ON/OFF
switch
Do Not Operate Cool-Only Models in Freezing Outdoor Conditions
Cool-only air conditioners are not designed for use when freezing outdoor conditions exist. They must not be used in freezing outdoor conditions.
Indoor/Outdoor Coils
The exhaust coils on the Zoneline should be checked regularly. If they are clogged with dirt or soot, they may be professionally steam cleaned by your GE service center. You will need to remove the unit from the case to inspect the coils because the dirt build-up occurs on the exhaust side.
9
Safety Instructions
Operating Instructions Care and Cleaning Troubleshooting Tips Consumer Support
Care and cleaning. ge.com

Base Pan

In some installations, dirt or other debris may be blown into the unit from the outside and settle in the base pan (the bottom of the unit).
In some areas of the United States, a “gel-like” substance may be present in the base pan.
Check it periodically and clean, if necessary.
Turn off the Zoneline and disconnect the power supply before cleaning.
Outdoor coils
To maintain optimum performance, change the filter at least every 30 days.

Air Filters

The most important thing you can do to maintain the Zoneline is to change the filter at least every 30 days. Dirty filters reduce cooling, heating and air flow.
Changing the filter will: Decrease cost of operation, save energy, prevent clogged heat exchanger coils and reduce the risk of premature component failure.
CAUTION: Do not operate
the Zoneline without the filter in place. If a filter becomes torn or damaged, it should be replaced immediately.
Operating without the filter in place or with a damaged filter will allow dirt and dust to reach the indoor coil and reduce the cooling, heating, airflow and efficiency of the unit.
Replacement filters should be purchased from your local retailer where air conditioner and furnace accessories are sold.
Filter size required is 20x 20x 1″.
Have the coils cleaned regularly.
Unit-mounted filter
Remove filter
Access-panel with
return air grille
Return air grille
Filter
Filter
To remove and replace the filter:
Drain
Clean the drain system regularly to prevent clogging.
BEFORE YOU BEGIN
Installation Zoneline Air Instructions Conditioners
Read these instructions completely and carefully.
IMPORTANT
Save these instructions
for local inspector’s use.
IMPORTANT
Observe all governing
codes and ordinances.
Note to Installer – Be sure to leave these
instructions with the owner.
Note to Owner – Keep these instructions
for future reference.
Proper installation is the responsibility of the installer.
Product failure due to improper installation is not
covered under the Warranty.
You MUST use all supplied parts and use proper
installation procedures as described in these instructions when installing this air conditioner.
Questions? Visit our Website at: ge.com or call 800.GE.CARES (800.432.2737).
IMPORTANT ELECTRICAL SAFETY–READ CAREFULLY
CAUTION:
• All electrical connections and wiring MUST be installed by a qualified electrician.
• Follow the National Electrical Code (NEC) and/or local codes and ordinances.
• For personal safety, this Zoneline unit and case must be properly grounded.
• Protective devices (fuses or circuit breakers) acceptable for Zoneline installations are specified on the nameplate of each unit.
• Do not use an extension cord with this unit.
• Aluminum building wiring may present special problems—consult a qualified electrician.
• When the unit is not running there is still voltage to the electrical controls.
• Disconnect the power to the unit before servicing by:
1. Removing the power cord (if it has one) from
the wall receptacle.
OR
2. Removing the branch circuit fuses or turning
the circuit breakers off at the panel.
Phillips screwdriver
TOOLS YOU WILL NEED
10
WARNING:
Before beginning the installation, switch power off at the service panel and lock the area to prevent power from being switched on accidentally. When the area cannot be locked, securely fasten a prominent warning device, such as a tag, to the service panel.
Adjustable wrench
Saw
Hammer
Tape measure
11
Installation Instructions
ELECTRICAL REQUIREMENTS
230/208 VOLT ELECTRICAL SUPPLY
Tandem
15 Amp
230/208 volt receptacle configuration
Perpendicular
20 Amp
Large Tandem
30 Amp
Use ONLY the wiring size recommended for single
outlet branch circuit.
Proper current protection is the responsibility
of the owner.
A power supply kit must be used to supply power to the Zoneline unit. The appropriate kit is determined by the voltage, the means of electrical connection and the amperage of the branch circuit. See the POWER CONNECTION CHARTon page 13 to select the appropriate kit.
All wiring, including installation of the receptacle, must be in accordance with the NEC and local codes, ordinances and regulations.
Power supply kit
Recommended branch circuit wire sizes*
Nameplate
maximum circuit AWG Wire
breaker size size**
15A 14 20A 12 30A 10
AWG – American Wire Gauge * Single circuit breaker from main box ** Based on copper wire, single insulated conductor at 60° C
NOTE: Use copper conductors only.
FOR 230/208 VOLT POWER CORD CONNECTIONS ONLY
1. Remove the front panel by taking out the four
front screws, the upper two screws from the top of the panel and the shipping screws on each side, if present. (Discard the two side shipping screws, if present.)
2. Remove the junction box cover and the junction box
and discard.
3. Connect the power cord, with a loop, through
the strain relief.
Strain relief
IMPORTANT:
Power cord must have a loop.
Remove junction box and cover
Side shipping screw
Side shipping screw
REMOVE JUNCTION BOX COVER
Remove the junction box cover by taking out the front
two screws.
1
Junction box
Installation Instructions
12
DIRECT CONNECT APPLICATIONS
FOR 265 VOLT DIRECT CONNECT APPLICATIONS ONLY
IMPORTANT: Connection of a 265V AC product
to a branch circuit MUST be done by direct connection in accordance with the National Electrical Code. Plugging this unit into a building mounted exposed receptacle is not permitted by code.
These models must be installed using the appropriate GE power supply kit for the branch circuit amperage and the electrical resistance heater wattage desired. See the POWER CONNECTION CHART on page 13 to select the appropriate kit.
It is the responsibility of the installer to ensure the connection of components is done in accordance with electrical codes.
Direct connection to branch circuit wiring inside the provided junction box must be made by connecting as follows in steps 1–3 below.
ATTACH CONDUIT
Use the round knockout hole at the top
of the junction box to install conduit coming from the branch circuit. Install and clamp the conduit through the conduit clamp and bring wire leads into the junction box. Leave 8of wire free from the end of the conduit.
2
Conduit
FOR 230/208 VOLT DIRECT CONNECT APPLICATIONS ONLY
Direct connection to branch circuit wiring inside the provided junction box must be made by connecting as follows in steps 1–3 below.
Connector
Conduit clamp
Junction box cover
13
Installation Instructions
DIRECT CONNECT APPLICATIONS
MAKE WIRE LEAD CONNECTIONS INSIDE THE JUNCTION BOX
1. Make all wire connections by using appropriate UL-listed electrical connectors and techniques.
2. Select the applicable wiring situation and follow the instructions accordingly:
3. Be sure that all wire leads are inside the junction box and not
pinched between the box and the unit. The green insulated ground wire from the Zoneline MUST be connected to the branch circuit ground wire.
4. Plug the 9-pin connector into the 9-pin receptacle in the junction box.
5. Replace the junction box cover by replacing the two screws
removed earlier.
3
230/208 Volt Wall Plug Heater Wattage
Power Supply Kits Configuration Circuit Protective Device @ 230/208 Volts
RAK3152 Tandem 15-Amp Time-Delay Fuse or Breaker 2.55/2.09 KW RAK3202 Perpendicular 20-Amp Time-Delay Fuse or Breaker 3.45/2.82 KW RAK3302 Large Tandem 30-Amp Time-Delay Fuse or Breaker 5.00/4.10 KW
230/208 Volt Heater Wattage
Power Supply Kits @ 230/208 Volts Circuit Protective Device
RAK4157 2.55 KW/2.09 KW 15-Amp Time-Delay Fuse or Breaker RAK4207 3.45 KW/2.82 KW 20-Amp Time-Delay Fuse or Breaker RAK4307 5.00 KW/4.10 KW 30-Amp Time-Delay Fuse or Breaker
265 Volt Heater Wattage
Power Supply Kits @ 265 Volts Circuit Protective Device
RAK5157 2.55 KW 15-Amp Time-Delay Fuse or Breaker RAK5207 3.45 KW 20-Amp Time-Delay Fuse or Breaker RAK5307 5.00 KW 30-Amp Time-Delay Fuse or Breaker
Conduit
Make wire lead connections
• 1-Phase 220-240 VAC
When connecting the Zoneline to a single-phase circuit for 230V applications:
Connect the white and black leads of the Zoneline power supply kit to the branch circuit L1 and L2 leads. (The white lead of the power supply kit should be identified by the installer using electrical tape with some color other than green or white.) Connect the green lead of the power supply kit to the power supply and branch circuit ground.
• 3-Phase 208 VAC
When connecting the Zoneline to a three-phase circuit for 208V applications:
Connect the white and black leads of the Zoneline power supply kit to the branch circuit L1 and L2 leads. (The white lead of the power supply kit should be identified by the installer using electrical tape with some color other than green or white.) Connect the green lead of the power supply kit to the power supply and branch circuit ground.
• 3-Phase 208 VAC with “Crazy Leg”
When connecting the Zoneline to a three-phase circuit with “Crazy Leg” for 208V applications:
Connect the white and black leads of the Zoneline power supply kit to the branch circuit Neutral and L1 leads. (The white lead of the power supply kit should be connected to neutral.) Connect the green lead of the power supply kit to the power supply and branch circuit ground.
• 3-Phase 253-277 VAC
When connecting the Zoneline to a three-phase circuit for 265V applications:
Connect the white and black leads of the Zoneline power supply kit to the branch circuit Neutral and L1 leads. (The white lead of the power supply kit should be connected to neutral.) Connect the green lead of the power supply kit to the power supply and branch circuit ground.
Power Cord Connections
POWER CONNECTION CHART
Direct Connections
Installation Instructions
14
ZONELINE COMPONENTS
Case
Zoneline unit
Front Case Panel
REQUIRED ACCESSORIES
(Check the “Essential Elements” label on the unit.)
Architectural Louver
RAVAL1
Wall Plenum
RAVWP6 - 6D x 19
3
4W x 32H
RAVWP8 - 8D x 19
3
4W x 32H
RAVWP12 - 12D x 19
3
4W x 32H
RAVWP15 - 15D x 19
3
4W x 32H
Cutout
Dimensions:
20W x 32
1
4H
Access Panel with
Return Air Grille
RAVRG1
Return Air Grille
RAVRG2
Cutout
Dimensions:
28W x 48″H
Cutout
Dimensions:
20
3
8W x 203⁄8H
OR
Wall Thermostat
Model Type Mechanical Thermostat Electronic Thermostat
Heat/Cool Models 4-wire 5-wire Heat Pump Models 6-wire 6-wire
Check the thermostat instructions for correct wiring and installation requirements.
30
50
22 1⁄2
22 1⁄2
Installation Instructions
15
TYPICAL UTILITY CLOSET AND DIMENSIONS
(FOR REFERENCE ONLY)
Side View
Top View
Architectural Louver
10 duct
Door/access panel
3min.
5min.
Unit front
3
min.
14min. – Required only if optional Hydronic Heating Kit (RAVHW1, RAVHW2, RAVHW3) is to be installed. Clearance for installation should be taken into consideration if this kit is to be used.
Exterior/Outside
Outside wall
Wall
plenum
Inside wall
Air discharge outlet
Rigid ductwork
Flexible or rigid duct
Wall plenum divider
31
Option 1 Access panel with return air grille
Option 2 Return air grille
Filter bracket
Secure platform to the floor
Platform: 23
1
4x231⁄4square
Min. load capacity: 175 lbs.
4min. from front of case – Unit installed through FRONT of case.
5min. from front of case – Unit installed through SIDE of case.
3min. from two sides of case.
Plenum cutout 321⁄4H x 20″ W
Drain fittings 3⁄4
Outside wall
Platform
Wall plenum
Field supplied outer flashing
10
111⁄2
A
B
A Minimum recommended access door width: 30 B Minimum recommended access door height: 50
UNIT INSTALLED THROUGH SIDE OF CASE
Top View
Architectural Louver
10 duct
Door/access panel
3min.
4min.
Unit front
3
min.
10
11
1
2
UNIT INSTALLED THROUGH FRONT OF CASE
Bottom of case approx. 2 above bottom of plenum
8″ min. for drain access
Bottom of case approx. 2 above bottom of plenum
Unit
Installation Instructions
16
UTILITY CLOSET CONNECTION LOCATIONS
IMPORTANT: Plan and locate plenum, wall plug, drains and
thermostat carefully to avoid interference. Hard-to-reach locations will make installation and service difficult!
Reference Dimensions
A Thermostat cable: 91⁄2long B Power cord: 60long C Case width and depth: 231⁄8 D Case height: 31 E Condensate drains: 3/4connector
• Primary Drain – Centerline of cutout is approximately 51⁄4from left case wall and 81⁄2from back case wall.
• Secondary Drain – Centerline of cutout is approximately 61⁄2from left case wall and 51⁄4from back case wall.
F Typical wall plug: 6–12above case G Room air sensor kit: 10long
Outside wall
Flex duct may be used
for transitions only
Use rigid duct for 90°
bends and tees
F
C
C
D
E
Platform
B
A
230/208 VAC wall receptacle
or
conduit for direct connection
G
Installation Instructions
17
RETURN AIR GRILLE INSTALLATION OPTIONS
The room return air grille may be installed toward the front or either side of the unit. Improper return air arrangements will cause performance problems.
There are three indoor return air grille installation options. Choose the option that best suits your installation requirements. Follow the Installation Instructions provided with the return air grille accessory for installation details.
NOTE: Use only one filter in the installation. The filter may be installed on the unit or in the access panel/door.
Unit-mounted filter with a field-supplied return
air grille and access door/panel
RAVRG2 – Return air grille
RAVRG1 – Access panel with
return air grille
Filter
Filter
Filter
Outside wall
Option 1
Option 2
Option 3
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