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' • • <br /> � - • powered fresh air option, seven (7) conductor thermostat wires <br /> should be run to the unit. Thermostat wire should be sized as <br /> The installer MUST check available power to make certain it shown on the table at right. <br /> matches the unit nameplate rating and that constant voltage can Wire Gau e Maximum Len th <br /> be maintained to the unit. Unsatisfactory and unsafe 20 45' <br /> performance could otherwise result. The local power company 18 60' <br /> should be contacted about questions concerning power supply. <br /> 16 100' <br /> � _ � � , 14 160' <br /> 12 250' <br /> These units are standard equipped from the factory with a unit Refer to wiring diagrams for connection details. <br /> disconnect. This is in the form of a circuit breaker (230V STAGING OF ELECTRIC HEAT <br /> models) or disconnect (460V models). If an optional electric H series units with electric heat assemblies are wired for two <br /> heat kit is to be installed, follow the instructions included with stage heat in normal operation. The first stage is refrigerant heat <br /> the heater assembly. (Y and G terminals are energized and the O terminal is de- <br /> See Figure 1 for reference. energized). The second stage is auxiliary resistance heat (W is <br /> �1� <br /> �' FIGURE 1 energized). H series units are equipped with an emergency heat <br /> \����;�. lock-out relay. This will disable the compressor when the E <br /> \\� � terminal is energized. Do not install a jumper between the W <br /> \�T��-'-, E���������E�., and E terminals; this would keep the compressor contacts from <br /> � � �� being energized and prevent the compressor from operating. <br /> .��� ,U <br /> ,;. �� �� <br /> � <br /> ��ulr._��� �� . � <br /> . <br /> � R e�Pa�.<<,ro��� <br /> T SERIES UNITS ARE FOR USE IN SINGLE-STORY <br /> WARNING: ELECTRICAL EQUIPMENT BUILDINGS ONLY <br /> ' SHOULD BE INSTALLED BY A QUALIFIED, 1. As previously stated, the wall that the unit is to be <br /> ■ LICENSED ELECTRICIAN. IMPROPER installed onto MUST be strong enough to support the unit <br /> ELECTRICAL HOOK-UP MAY DAMAGE under the condition for which it will be used. For example, <br /> EQUIPMENT, CAN CREATE A HAZARD AND WILL VOID a unit to be installed on a building that is intended to be <br /> WARRANTY. transported will require more wall strength than a unit <br /> installed at a permanent site. Existing walls may need <br /> _ � � additional reinforcement. NEVER RELY ON EXTERIOR <br /> SIDING OR PLYWOOD TO SUPPORT THE UNIT. <br /> The line voltage electrical service can be routed through the Figure 2 below represents a typical installation of a <br /> right side panel or left side panel. Each area is supplied with two single-story stud wall at a permanent site. Since building <br /> line voltage knock-outs(1/2"—3/4"and 1"— 1 1/4"). Low voltage materials and techniques vary with regions and intended <br /> wiring can be routed through the right side panel. use, a building contractor and/or local building code <br /> official MUST be consulted for suitable construction <br /> NOTE: When routing line voltage through the return air methods. <br /> compartment, conduit MUST be used (even though this is a dry 2. Locate and attach the lower mounting bracket in the <br /> area) to comply with the NEC code. Refer to the ELECTRICAL desired location on the building. <br /> DATA tables for minimum wire size and maximum breaker size. 3. Apply a suitable amount of caulk or silicone across the <br /> All wire sizes listed under the dual-feed circuit column are based entire length of the top rain flashing and side mounting <br /> on no more than three(3) conductors in the same conduit. If two flanges. <br /> circuits or more than three (3)conductors are to be routed in the 4. Remove the flanges on both ends of the pallet and slide <br /> same conduit, the ampacity of the wire size listed MUST be the unit approximately 2" off the rear of pallet. Lift unit <br /> derated. Refer to Article 310 of the NEC code for adjustment gently into location with fork truck, taking care to align <br /> factors. Be sure to install a ground wire of the proper size to the unit with lower mounting bracket. <br /> unit's equipment ground lug. 5. While allowing a small portion of weight on the lower <br /> The blower motor must be powered by 240V or 277V supply. If bracket, push the unit against the wall and fasten <br /> the unit is supplied by 460V power, and a neutral connection is appropriately. <br /> unavailable, the motor may be powered by a 460V to 277V or l`a <br /> 240V transformer. FiGURE 2 `��`\ <br /> -�- <br /> �. , <br /> -. <br /> � � �`",,. �°al}� <br /> �P�NC <br /> 230 volt, 1- and 3-phase units are equipped with dual-primary �` ,'�$ ��4� <br /> voltage transformers for 208/240 volt operation. These models n ' � ;- � �w4 <br /> are factory wired to the 240 volt tap. For 208 volt operation � c <br /> connect the factory-installed black wires from the 240 volt tap to ="� - - <br /> the 208 voit tap. The acceptable voltage range of the tap is as �lnit Mnciel A B • <br /> follows. Tap Voltage Range 1£s�24 35 71 � <br /> 240 Volt 253-216 30/36 39 71 <br /> 208 Volt 220- 187 `�8��� 42 86112 <br /> Six (6) conductor thermostat wires should be run from the MOUNTING FLANGE BOLT <br /> thermostat location to the unit. If the unit is equipped with a PATTERN DIMENSIONS , � <br /> REV. 3/13/14 3090013 <br /> �<. <br />