INSTALLATION INSTRUCTION

Transcription

1 INSTALLATION INSTRUCTION ELECTRIC HEAT S THRU 05 5 THRU Supersedes: (9) (00) 0-5 FOR SINGLE PACKAGE CONDITIONERS THRU TON SINGLE PACKAGE HEAT PUMPS THRU 5 TON GENERAL This instruction contains all the necessary information for field assembling these CE series electric heaters in the single package units indicated above. These accessories include all of the required hardware except some screws being re-used as indicated in the installation procedure. Table shows the minimum air flow limitations across these heaters. The remaining tables contain important electrical data for the field-installed power supply. Refer to the respective direct-drive or belt-drive table. Units and ductwork are approved for zero clearance to combustible materials equipped with these electric heaters. Depending upon the voltage and the heater rating, some heater accessories require a fuse block and some do not. Refer to the appropriate electrical data table. NOTE: These heater accessories may be installed before or after the unit has been set on a curb or slab. TABLE - FLOW LIMITATIONS TABLE OF CONTENTS General... Installation..., TABLES No. Description Page Airflow Limitations... Direct-Drive Elec. Data & Ton Cooling... Direct-Drive Elec. Data 5& Ton Cooling...5 Direct-Drive Elec. Data & Ton Cooling... 5 Direct-Drive Elec. Data 5 Ton Cooling...7 Direct-Drive Elec. Data & T Heat Pump... 7 Direct-Drive Elec. Data 5 Ton Heat Pump...9 Belt-Drive Elec. Data & Ton Cooling Belt-Drive Elec. Data 5& Ton Cooling... 0 Belt-Drive Elec. Data & Ton Cooling... Belt-Drive Elec. Data 5 Ton Cooling... Belt-Drive Elec. Data & Ton Heat Pump... Belt-Drive Elec. Data 5 Ton Heat Pump...5 FIGURES No. Description Page Blower Partition... Heaters Without A Fuse Box... Heaters With A Fuse Box... NO., NOMINAL 5 MINIMUM CFM,00,0,0,00,0,0,00,0,0,00,0,0,0,0,0 CE000,0 CE00055,00,0,0,0 CE00075,00,0,0,0,00.0,0,0,00,0,0,0,0,0,0,0 CE005,0,0 CE0007,00,0,0,0 CE000,00,0,0,0 CE005,00,0,0,0 CE000,0,0,0,0 CE00,0,0,00,0,0,0,00,0,0,0,0,0,0,0 CE005,0,0 This -ton model is only available as a Single Package Air Conditioner. CGA minimum is,0 CFM.

2 INSTALLATION FOR S WITHOUT A BOX (See Figure ) Refer to the electrical Data Tables for heaters shipped without a fuse box. located on the heating section side of the blower partition. Tighten the nut. NOTE: Wrap the leads with a minimum of layers of electrical tape where they come into contact with the connector. DO NOT tighten the connector clamp screws until the power leads are connected and in place.. Connect the two harnesses having MATE-N-LOCK plugs into their respective sockets located in the blower partition. Refer to Figure. Connector S/P is a two-terminal MATE- N-LOCK. Connector S/P is a four-terminal MATE-N- LOCK. NOTE: The flat surfaces on the pins of the MATE-N-LOCK plugs must align with the flat surfaces on their respective sockets. To remove these plugs after the connections have been made, squeeze the sides together and pull out. 9. Mount the terminal block provided to the holes beneath the M contactor in the unit s main control box using the Phillips pan head screws. FIG. - PARTITION Install the electric heater accessories as follows:. Disconnect all electrical power to the unit.. Remove the following panels from the basic unit. Heating access panel Blower access panel Main control box access panel NOTE: Motor leads are held in place above the blower by plastic ties. Do not disturb these ties unless the leads interfere with panel fit-up.. Remove and discard the cover plate attached to the plenum within the unit heating section. Keep the mounting screws for later use.. Remove knockout from the blower compartment partition. (See Figure ). 0. Remove the -/" knockout from the right side of the unit s main control box. Slip a connector nut and a reducing washer over the power leads from the heater harness and insert the leads into the main control box through the knockout hole. From inside the main control box, slip a reducing washer and an electrical connector over the power leads. Tighten the connector nut, but do not tighten the screws on the connector clamp until the leads have been connected to the terminal block. Refer to the wiring label inside the heater control box cover for the proper connection of the heater power leads. NOTE: Wrap the heater power leads with tape as instructed in "NOTE" under Step 7.. Adjust the heater power leads for the proper slack, and tighten the screws on both connector clamps to secure them in position. Use one of the wire ties provided to cable the heater leads in the heater compartment and two of the wire ties to cable the power leads in the blower compartment.. Connect field power supply wiring to the bottom terminals of the terminal block.. Replace the cover on the heater control box, and reinstall the unit panels that were removed in Step.. Reconnect power to the unit. 5. Remove the cover from the heater accessory control box.. Insert the heater coils through the opening in the heating section plenum. At the same time, insert the heater support pin (on the coil end of heater) into the appropriate hole in the heater support located inside of the plenum. Secure the heater control box to the plenum with seven of the screws that were removed in Step ( screws each side and screw at the bottom). Discard extra screws. CAUTION: Exercise care when inserting the heater into the plenum opening to avoid damage or misalignment of the heater coils. The heater control box must fit flush against the plenum without force and with the control box mounting holes properly aligned. 7. Insert the loose power leads from the heater harness through the knockout hole in the blower partition. An electrical connector is supplied to secure these wires to the panel. Position the connector so that the connector nut is FIG. - S WITHOUT A BOX Unitary Products Group

3 FOR S WITH A BOX (See Figure ) Refer to the Electrical Data Tables for heaters shipped without a fuse box. Install the electric heater accessories as follows:. Disconnect all electrical power to the unit.. Remove the following panels from the basic unit. Heating access panel Blower access panel Main control box access panel NOTE: Motor leads are held in place above the blower by plastic ties. Do not disturb these ties unless the leads interfere with panel fit-up.. Remove and discard the cover plate attached to the plenum within the unit heating section. Keep the mounting screws for later use.. Remove knockout from the blower compartment partition. (See Figure ). 5. Remove the cover from the heater accessory control box.. Insert the heater coils through the opening in the heating section plenum. At the same time, insert the heater support pin (on the coil end of heater) into the appropriate hole in the heater support located inside of the plenum. Secure the heater control box to the plenum with seven of the screws that were removed in Step ( screws each side and screw at the bottom). Discard extra screws. CAUTION: Exercise care when inserting the heater into the plenum opening to avoid damage or misalignment of the heater coils. The heater control box must fit flush against the plenum without force and with the control box mounting holes properly aligned. 7. Insert the loose power leads from the heater harness through the knockout hole in the blower partition. An electrical connector is supplied to secure these wires to the panel. Position the connector so that the connector nut is located on the heating section side of the blower partition. Tighten the nut. be on the blower side of the control box for proper fuse box fit-up. Mount the fuse box inside the blower section. Attach the upper left-hand flange on the fuse box to the back of the main control box with one screw provided. The mounting hole is located above the RC capacitor. Attach the bottom right-hand flange on the fuse box to the unit base, at the holes provided, with two screws. NOTE: If the insulation grip nail fasteners on the base of the blower section interfere with the proper mounting of the fuse box, they should be broken off. CAUTION: Exercise care when securing the fuse box in position to make sure that the evaporator low temperature sensor control leads are not pinched or cut. If leads must be routed away from sheet metal edges, visually check the control to ensure its location has not been disturbed.. Open the hinged fuse box cover to gain access to the inside. Install the electrical connector provided into the knockout hole in the right-hand side of the fuse box and tighten nut. Insert the heat power leads (from Step 7) through the connector in the fuse box and connect to the proper terminals on the fuse block(s). NOTE: Wrap the heater power leads with tape as instructed in "NOTE" under Step 7. Insert the unit power supply leads and the leads from the contactor through the snap bushing (installed in Step 9) in the main control box, and through the open left side of the fuse box to be connected to the fuse block(s). Refer to the wiring label inside the heater control box cover for the proper connection of the power leads.. Adjust all wires for proper slack, and tighten the screws on both connector clamps to secure them in position.. Connect field supply power supply wiring to the lugs on top of the fuse block(s). 5. Close the fuse box cover, replace the cover on the heater control box, and reinstall the unit panels that were removed in Step.. Reconnect power to the unit. NOTE: Wrap the leads with a minimum of layers of electrical tape where they come into contact with the connector. DO NOT tighten the connector clamp screws until the power leads are connected and in place.. Connect the two harnesses having MATE-N-LOCK plugs into their respective sockets located in the blower partition. Refer to Figure. Connector S/P is a two-terminal MATE- N-LOCK. Connector S/P is a four-terminal MATE-N- LOCK. NOTE: The flat surfaces on the pins of the MATE-N-LOCK plugs must align with the flat surfaces on their respective sockets. To remove these plugs after the connections have been made, squeeze the sides together and pull out. 9 Remove the -/" knockout from the right-hand side of the unit s main control box. Insert the special snap bushing provided into the knockout hole from the blower section side of the control box. The retaining collar on the bushing MUST FIG - S WITH A BOX Unitary Products Group

4 TABLE - ELECTRICAL DATA (COOLING W/ DIRECT DRIVE - & TON S) COOLING ELECTRIC S Dual element, time delay type. Standard circuit breakers may be used in Canada and on applications over amps where the heaters are separately fused. Based on C copper conductors (up to 00 amps max. or 75 C copper conductors. (00 amps and over) Cap FB0 FB05 0/ Volts Volts Unitary Products Group

5 TABLE - ELECTRICAL DATA (COOLING W/DIRECT DRIVE - 5 & TON S) COOLING ELECTRIC S 0 07 CE000 CE000 CE005 CE005 CE00* CE005 CE005 CE005 CE00* CE Dual element, time delay type. Standard circuit breakers may be used in Canada and on applications over amps where the heaters are separately fused. Based on C copper conductors (up to 00 amps max. or 75 C copper conductors. (00 amps and over) Cap FB0 FB05 0/ Volts Volts Unitary Products Group 5

6 TABLE - ELECTRICAL DATA (COOLING W/ DIRECT DRIVE - & TON S) COOLING ELECTRIC S Dual element, time delay type. Standard circuit breakers may be used in Canada and on applications over amps where the heaters are separately fused. Based on 75 C copper conductors. Cap FB0 FB05 0/ Volts Volts Unitary Products Group

7 TABLE 5 - ELECTRICAL DATA (COOLING W/DIRECT DRIVE - 5 TON S) COOLING ELECTRIC S 0 CE000 CE000 CE005 CE005 CE00* CE / Dual element, time delay type. Standard circuit breakers may be used in Canada and on applications over amps where the heaters are separately fused. Based on 75 C copper conductors. Cap FB0 FB05 0/ Volts Volts Unitary Products Group 7

8 TABLE - ELECTRICAL DATA (HEAT PUMP W /DIRECT DRIVE - & TON S) HEAT PUMP ELECTRIC S 0 0 5, Dual element, time delay type. Standard circuit breakers may be used in Canada and on applications over amps where the heaters are separately fused. Based on C copper conductors (up to 00 amps max. or 75 C copper conductors. (00 amps and over) Cap FB0 FB05 0/ Volts Volts Unitary Products Group

9 TABLE 7 - ELECTRICAL DATA (HEAT PUMP W/ DIRECT DRIVE - 5 TON S) HEAT PUMP ELECTRIC S 0 CE000 CE000 CE005 CE005 CE00* CE Dual element, time delay type. Standard circuit breakers may be used in Canada and on applications over amps where the heaters are separately fused. Based on C copper conductors (up to 00 amps max. or 75 C copper conductors. (00 amps and over) Cap FB0 FB05 0/ Volts Volts Unitary Products Group 9

10 TABLE - ELECTRICAL DATA - (COOLING w/ BELT DRIVE - & TON S) COOLING ELECTRIC S Dual element, time delay type. Standard circuit breakers may be used in Canada and on applications over amps where the heaters are separately fused. Based on C copper conductors (up to 00 amps max. or 75 C copper conductors. (00 amps and over) Cap FB0 FB05 0/ Volts Volts 0 Unitary Products Group

11 TABLE 9- ELECTRICAL DATA - (COOLING w/belt DRIVE - 5 & TON S) COOLING ELECTRIC S 0 07 CE005 CE005 CE00* CE005 CE005 CE005 CE00* CE Dual element, time delay type. Standard circuit breakers may be used in Canada and on applications over amps where the heaters are separately fused. Based on C copper conductors (up to 00 amps max. or 75 C copper conductors. (00 amps and over) Cap FB0 FB05 0/ Volts Volts Unitary Products Group

12 TABLE 0 - ELECTRICAL DATA - (COOLING w/ BELT DRIVE - & TON S) COOLING ELECTRIC S Dual element, time delay type. Standard circuit breakers may be used in Canada and on applications over amps where the heaters are separately fused. Based on 75 C copper conductors. Cap FB0 FB05 0/ Volts Volts Unitary Products Group

13 TABLE - ELECTRICAL DATA - (COOLING w/belt DRIVE - 5 TON S) COOLING ELECTRIC S 0 CE005 CE005 CE00* CE Dual element, time delay type. Standard circuit breakers may be used in Canada and on applications over amps where the heaters are separately fused. Based on 75 C copper conductors. Cap FB0 FB05 0/ Volts Volts Unitary Products Group

14 TABLE - ELECTRICAL DATA (HEAT PUMP W/BELT DRIVE - & TON S) HEAT PUMP ELECTRIC S Dual element, time delay type. Standard circuit breakers may be used in Canada and on applications over amps where the heaters are separately fused. Based on C copper conductors (up to 00 amps max. or 75 C copper conductors. (00 amps and over) Cap FB0 FB05 0/ Volts Volts Unitary Products Group

15 TABLE - ELECTRICAL DATA - (HEAT PUMP w/ BELT DRIVE - 5 TON S) HEAT PUMP ELECTRIC S 0 CE005 CE005 CE00* CE Dual element, time delay type. Standard circuit breakers may be used in Canada and on applications over amps where the heaters are separately fused. Based on C copper conductors (up to 00 amps max. or 75 C copper conductors. (00 amps and over) Cap FB0 FB05 0/ Volts Volts Unitary Products Group 5

16 0/ and -volt models only 0/ and 575-volt models only Subject to change without notice. Printed in U.S.A Copyright by Unitary Products Group 99. All rights reserved. Unitary Products Group 05 York Drive Norman OK 79 Codes: SBY, F, L (00)