Installation > Sleeve Installation Requirements
Question:
What are the sleeve installation requirements?
Answer:
Requirements are listed below. Reminder: Units are shipped without sleeve.
INSPECT WALL SLEEVE INSTALLATION
In a replacement or retrofit situation, it is recommended that a sleeve be used with a chassis from the same manufacturer. Refer to Figures 5 and 6 for typical wall installation and unit dimensions.
1. For lateral airflow applications, an accessory lateral duct must be used. Refer to Figure 7.
2. The sleeve must be mounted so that it is level in all directions. A 1/4-in. pitch is built into the unit chassis for proper condensate drainage. An accessory drain kit is available if needed.
IMPORTANT: If more than 4 in. of the sleeve projects into the room or the wall is less than 2 in. thick, an accessory subbase must be used for support. Refer to Figure 8.
3. The sleeve should be caulked on all sides, including both inside and outside of the building.
FIGURE 5 TYPICAL WALL INSTALLATION
FIGURE 6 - DIMENSION DRAWING - 52SC,SE,SQ
Notes: for Figures 6-8
1. Minimum opening sizes apply to all wall openings.
2. Installed wall sleeve must be level from side to side and front to back.
3. Sleeve can be flush mounted to floor, but front panel may have to be notched to accommodate service cord, except for units with subbase
(see Note 4).
4. When using subbase accessory, wall sleeve must extend 3'/4 in. minimum into room and 31/4 in. minimum to 5'/2 in. maximum above floor.
5. Dimensions in parentheses are in millimeters.
6. For all applications with an accessory lateral duct, sleeve must extend into the room 1 in. minimum.
7. If wall sleeve extends into room more than 4 in., an accessory subbase must be used for support.
8. If wall is less than 2 in. thick, an accessory subbase must be used for support.
FIGURE 7 - 52S LATERAL DUCT
FIGURE 8 - 52S WITH SUBBASE
PREPARE SLEEVE FOR CHASSIS INSTALLATION
1. Remove cardboard center support and rear closure panel from wall sleeve. Refer to Figure 9.
2. Install outdoor grille as described in the installation instructions supplied with the grille.
CAUTION
Only a Carrier outdoor grille should be used with the 52S-unit air conditioner. Use of any other grille, must be approved by Carrier in Syracuse, New York. In deep-wall applications, if an existing grille is used on an outdoor wall opening, do not install an additional outdoor grille on unit sleeve.
3. See Figure 10 for typical deep wall application. Inspect accessory outdoor grilles.
IMPORTANT: Be sure that the foam strips and/or baffles provide a good seal between the grille and condenser coil tube sheets. These foam strips or baffles provide a barrier to separate condenser air from the major components (compressor and fan motor).
CAUTION
If baffles are not installed properly, loss of performance and premature damage to the major components can result.
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FIGURE 9 - REMOVING CENTER SUPPORT AND CLOSURE PANEL FROM CARRIER WALL SLEEVE
FIGURE 10 - TYPICAL DEEP WALL INSTALLATION - ALL MODELS (BAFFLES ARE FIELD FABRICATED)
INSTALL CHASSIS IN SLEEVE
1. Inspect foam gaskets (top, bottom, both sides) on chassis. (See Figure 11.) Replace foam gaskets if torn or missing.
WARNING
Chassis weighs between 118 and 138 lbs. For personal protection, seek help when lifting the unit. Lift unit by holding unit basepan.
1. Lift chassis level with wall sleeve.
2. Slide chassis into wall sleeve until foam gaskets on chassis mounting flange rest firmly against front of wall sleeve.
3. Screw chassis to wall sleeve with four 13/4-in. long screws taped to the control box. Four screw holes are located on both sides of the mounting angles of the chassis. Use only the top and bottom screw holes on each side for a plastic sleeve. Use two middle screw holes on each side for a metal sleeve.
NOTE: If the gasket behind the chassis mounting angle covers screw holes, push a nail through each hole before inserting screws to facilitate assembly.
IMPORTANT: The gaskets combine with the sleeve face to create a weather barrier. If the chassis is installed in a non-Carrier sleeve, this weather barrier may not be effective.
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FIGURE 11 - 52S SERIES CHASSIS (CORD CONNECTED UNIT SHOWN)
ACCESSORY INSTALLATION
IMPORTANT: Only trained, qualified personnel and service mechanics should install electrical accessories on Carrier 52S series products per Carrier's installation instructions. Please contact your local electrical contractor, dealer, or distributor for assistance.
INSTALL ACCESSORY HARDWIRE KIT OR 265-v ACCESSORY CORD-CONNECTED KIT - Install Carrier accessory hardwire kit according to the instructions provided with the accessory. The accessory cord-connected kit is for 265-v units only, and requires an accessory subbase, Part No. SUBBASE, with a field-installed receptacle.
INSTALL THERMOSTAT - All remote control units.
1. Check to be sure power to unit is disconnected.
2. Remove terminal board cover from right side of chassis (see Figure 12).
3. Insert field-supplied low-voltage thermostat wire through bushing on the cover.
4. Connect wires from terminals on the thermostat to terminals on chassis terminal board. See Figures 13A and 13B.
5. Reinstall cover with two screws.
6. Mount field-supplied thermostat to wall.
7. Set thermostat anticipator at 0.8 amp (manual thermostat only).
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FIGURE 12 - LOW-VOLTAGE TERMINAL BOARD
FIGURE 13A - WIRING CONNECTIONS, LOW-VOLTAGE MANUAL CHANGED THERMOSTAT
FIGURE 13b - RC WIRING CONNECTIONS, PROGRAMMABLE THERMOSTAT
INSTALL ENERGY MANAGEMENT (EM) ACCESSORY KIT
This accessory kit permits individual units to be turned off from a remote location such as a hotel control desk to conserve energy when the room is unoccupied. Freeze guard protection prevents the room temperature from dropping below 40° F, overriding any OFF command, including front desk control.
IMPORTANT: In order for freeze guard to operate, the unit must be put into the HEAT mode.
Electric heat will remain activated until the temperature reaches approximately 60° F.
IMPORTANT: The manufacturer currently does not supply any central desk equipment. This type of equipment should be handled through your local electrical contractor.
See Figure 14 for accessory kit location in control box. After EM accessory kit has been properly installed, connect low-voltage (24 VAC) field-supplied wires from chassis terminal board to your central desk panel (see Figure 15).
FIGURE 14 - EM ACCESSORY KIT
FIGURE 15 - EM ACCESSORY KIT SCHEMATIC DIAGRAM
ADJUSTMENTS
ADJUST AIRFLOW DIRECTION - The discharge air grille is mounted on the unit so that the air discharges forward. If upward discharge is required, remove the grille, invert it, and reinstall on the chassis.
ADJUST VENT - The VENT knob is located on the side of the unit. Slide VENT knob manually to open or close vent. Vent remains in the position selected.
ADJUST LIMITS ON ECONO ZONE@ II CONTROL - (This adjustment is optional and is not applicable to remote-control units.) Econo Zone II control permits adjustment of the temperature range available to the user by restricting rotation of the TEMPERATURE control knob.
To adjust:
1. Remove thermostat control knob and the control panel. To detach the control panel, remove two screws at base of panel and gently pull off panel. Once removed, the temperature limiter is exposed. (See Figure 16.)
2. Orient the shaft of the thermostat so that the rib on the vent control lever assembly, which is located under the limiter, is positioned between the temperature limits desired.
NOTE: The numbers stamped on the limiter represent degrees F and are approximate.
3. To set minimum cool setting, remove clip from the hole marked 60 and relocate to hole with desired setting. Repeat with clip from hole marked 90 to set maximum heat setting desired.
IMPORTANT: Clips must be fully inserted.
4. Reinstall the control panel and the thermostat control knob. If adjusted properly, the indicator on the control knob should always swing through the top section of the temperature markings on the control panel.
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FIGURE 16 - ECONO ZONE II TEMPERATURE LIMITER
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