Contents Start Up Getting Other Information and Publications Important Installer Note ......... 13 For more information, High Pressure Switch ..........12 contact these publishers .......... 1 Three Phase Scroll Compressor Start Up Information ............. 13 Wall Mount General Information Phase Monitor ............13 Air Conditioner Wall Mount Model Nomenclature ..
Getting Other Information and Publications These publications can help you install the air FOR MORE INFORMATION, CONTACT conditioner or heat pump. You can usually find these at THESE PUBLISHERS: your local library or purchase them directly from the publisher. Be sure to consult current edition of each ACCA Air Conditioning Contractors of America standard.
WALL MOUNT GENERAL INFORMATION AIR CONDITIONER WALL MOUNT MODEL NOMENCLATURE MODEL CONTROL MODULES 37 2 – A 10 NUMBER (See Spec. Sheet S3208) COIL OPTIONS CAPACITY X - Standard 25 - 2 Ton REVISIONS 1 - Phenolic Coated Evaporator 37 - 3 Ton COLOR OPTIONS 2 - Phenolic Coated Condenser X - Beige (Standard)
CLOSED FOR SHIPPING Any grille that meets the 5/8 inch louver criteria may be used. It is recommended that Bard Return Air Grille Kit RG-2 through RG-5 or RFG-2 through RFG-5 be installed when no return duct is used. Contact distributor or factory for ordering information.
INSTALLATION INSTRUCTIONS 6. Position unit in opening and secure with 5/16 lag WALL MOUNTING INFORMATION bolts; use 7/8 inch diameter flat washers on the lag 1. Two holes, for the supply and return air openings, bolts. must be cut through the wall as shown in Figure 3. 7.
The electrical data lists fuse and wire sizes (75ºC WIRING — LOW VOLTAGE WIRING copper) for all models, including the most commonly 230/208V, 1 phase and 3 phase equipment dual primary used heater sizes. Also shown are the number of field voltage transformers.
FIGURE 3 MOUNTING INSTRUCTIONS 4 9/16 MIS-311 NOTE: It is recommended that a bead of silicone caulking be placed behind the side mounting flanges and under the top flashing at the time of installation. Manual 2100-404 Page 8...
FIGURE 7 ELECTRIC HEAT CLEARANCE Side section view of supply air duct for wall mounted unit showing 1/4 inch clearance to combustible surfaces. MIS-277 WARNING WARNING • A minimum of 1/4 inch clearance must be maintained between the supply air duct and combustible materials. This is required for the first 3 feet of ducting.
START UP IMPORTANT INSTALLER NOTE The direction of rotation of the compressor may be changed by reversing any two line connections to the For improved start-up performance, wash the indoor unit. coil with a dishwasher detergent. PHASE MONITOR HIGH PRESSURE SWITCH All units with three phase compressors are equipped The WA372 models are supplied with a remote reset with a 3 phase line monitor to prevent compressor...
COMPRESSOR CONTROL MODULE Alarm Relay Output The compressor control module is optional on the Alarm terminal is output connection for applications models covered by this manual. The compressor where alarm relay is employed. This terminal is control is an anti-short cycle/lockout timer with high powered whenever compressor is locked out due to and low pressure switch monitoring and alarm relay HPC or LPC sequences as described.
TROUBLESHOOTING FAN BLADE SETTING DIMENSIONS The suction line temperatures in Table 8 are based upon 80ºF dry bulb/67ºF wet bulb (50 percent R.H.) Shown in the drawing below are the correct fan blade temperature and rated airflow across the evaporator setting dimensions for proper air delivery across the during cooling cycle.
TABLE 12 COOLING PRESSURE Outdoor Temperature °F Low side pressure ± 2 psig High side pressure ± 5 psig Tables are based upon rated CFM (airflow) across the evaporator coil and should be found under section titled "Refrigerant Charge" elsewhere in manual. If there is any doubt as to correct charge being in the system, the charge should be removed, system evacuated and recharged to serial plate instructions.
TABLE 13 OPTIONAL ACCESSORIES l a i i t n t a l i t n t a l i t n t a l t i u t i u t i u These heater packages not suitable for installation in top outlet models. NOTE: Top outlet models are available only as factory built.