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Resumen del manual
A field installed crankcase heater is standard on S1H 09 &12 (Thermostatically controlled) models, and is available as optional equip ment on other models. inStaller SUpplieD itemS • Power wiring • Low volt wiring (18 awg minimum) • Secure mounting pad or foundation • Refrigerant piping (if not purchased from EMI) • High Volt Disconnect • Refrigerant for charging interconnect piping (see charge table on page 10) • Compressor and fan motor contactor • Run capacitor • Loss of charge switch (09 - 12 only) • Low voltage terminal connections • Large capacity suction accumulator (09 - 12 only) • Solid core filter drier (09 - 12 only) • Thermostatically controlled crankcase heater (09 - 12 S1H’s) • H.P.S. (High pressure switch) - Standard on S1H’s (heat pumps) - Standard on S1C’s 18K and above. • Low Ambient controls for operation down to 32. F standard, factory installed on all S1H’s (heat pumps) Thermostatically controlled crankcase heater – This feature energizes the crank- case heater only when needed, removes the heater from the electrical circuit at conditions where it’s not required, saving unnecessary Watts, and increasing overall system efficiency. SYStem optionS • Field installed crankcase heater for straight cool units (standard on 9,000-12,000 Btuh S1H’s Thermostatically controlled) • Straight cool hard start (standard on all S1H’s) • 115v (9,000-12,000 Btuh only) • Copper/copper coils (sea coast use) • Low Ambient controlsfor operation down to 32. F, specify this option for S1C or S2C systems (standard on S1H’s) that will be operated in cooling mode at outside temperatures below 60. F (field installed kit) • Low Ambient for operation down to 0. F for S1C, S1H or S2C systems (consult factory for availability) low ambient controls are required when the system is asked to cool at outdoor temperatures below 60. F, this may cause damage to the compressor and coil, and may Side Discharge Condensers 3 inStallation inStrUCtionS SYStem optionS (cont.) SYStem optionS (cont.) void the warranty. A Field Installed Low- Ambient kit is good for operation down to 32. F. This is accomplished by cycling the condenser fan on and off, which will in turn maintain a constant low side pressure providing a steady cooling effect and keeping the air handler from frosting-up. itemS For ConSiDeration • Locate the unit as close to the indoor section as possible. (See Tubing Specifications chart on pape 7.) • If the unit is used for low ambient cooling down to 32°F, this option must be specified to prevent system damage. • Avoid high traffic areas and prevailing wind locations. • Surface must be flat and level. • Mount unit above typical snow fall levels. Ensure free flow of air through the unit. Air must not recirculate from discharge to intake. Air is drawn through the coil and side discharged through the fan grille. a minimum 48" clearance is necessary for the condenser discharge. rear intake (coil side) clearance is 12" minimum. Consider how power will be run to the unit from the power source. Refrigerant piping should be a direct line to the indoor unit. Site preparation inStallation inStrUCtionS 1. Place the unit on a flat concrete surface or pad if on the ground. Roof mounting should use a build up platform to avoid intake of hot air from the roof. 2. In areas of heavy snowfall, condensers should be set above the level of maximum anticipated snowfall (12" is usually adequate). S1C is shownUnit moUnting inStrUCtionS Side discharge unit allows for permanent mounting through the feet. This is highly recommended due to the vertical design of the unit. 1. Loosen the screws on left and right sides of the front panel. (Do not remove these screws.) 2. Remove the screws on the front of the panel. 3. To remove front panel: 4. Slide front panel forward to clear side screws and remove. Side Discharge Condensers 4 inStallation inStrUCtionS Unit moUnting inStrUCtionS Continued eleCtriCal Wiring 1. All electrical wiring must be run accord- inStallation inStrUCtionS Unit moUnting inStrUCtionS Continued eleCtriCal Wiring 1. All electrical wiring must be run accord- Lag Bolts Filter Drier S1C Shown Compressor Accumulator Capacitor 5. Insert lag bolts through the holes in the bottom of the unit and tighten to secure. S1C Shown 6. Insert lag bolts through the holes in the feet on the back of the unit and tighten to secure. 7. Replace the front panel, do not tighten the side screws at this time. ing to NEC and local codes. 2. Refer to the unit rating plate for voltage, minimum circuit ampacity and over current protection requirements. Rating Plate 3. Use only HACR type breakers or time delay fuses. Select the wire size according to the ampacity rating. 4. To access electrical connections and wiring diagram: a) Remove the screws on the side panel adjacent to the back panel. b) The screws adjacent to the front panel should already be loose (don't remove them). Side Discharge Condenser...
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