ACCESSORY KIT INSTALLATION INSTRUCTIONS

Transcription

1 ACCESSORY KIT INSTALLATION INSTRUCTIONS ELECTRIC HEAT ACCESSORY MODELS 2TP THROUGH INSTALLATION Improper installation, adjustment, service or maintenance can cause injury or property damage. Therefore, only a qualified installer or qualified service personnel should perform this conversion. TABLE 1: MINIMUM CFM LIMITATIONS FOR SINGLE PACKAGE AIR CONDITIONERS MODELS DM, DL, DH, DU, DF, DS, AND HEAT PUMPS BA AND BP 6-1/2 THROUGH 8-1/2 TONS GENERAL This instruction contains all the necessary information for field installing the electric heaters listed in Table 1 in the single package air conditioners and heat pumps listed above. Terminal blocks, electrical connectors, wiring, and all hardware are supplied with these accessories. The data in Table 1 shows the heater /minimum CFM limitations. Tables 2 through 17 lists the heater combinations applicable to the appropriate size unit. Tables 2 through 17 also contain important electrical characteristics and limitations. Units and ductwork are approved for zero clearance to combustible materials when equipped with these electric heaters. NOTE: These heater accessories may be installed before or after the unit has been set on a curb or slab. Accessory Model Number Unit Model Size, Nominal Tons Minimum Supply Air CFM 2TP TP TP TP TP TP TP TP TP TP TP TP Disconnect all electrical power to the unit. 2. Open the following doors to the unit: a. Heat Section b. Blower Section c. Compressor Section d. Wiring Section 3. Remove the patch plate in the electric heat section and discard. NOTE: Retain the screws for use in installing the electric heater. 4. Insert heater into space vacated by the patch plate. Slide into place tilting the rear of the heater up to allow the Unitary Products Group

2 front panel to clear the top flange of the heater compartment (see Figure 1). 6. Once the heater is slid into place, it must be secured with screws removed from patch plate (see Figure 3). FIGURE 1 - HEATER TILTED UP IN REAR 5. Once the front panel has cleared the top flange, the heater must be lifted slightly and the front panel flexed at the bottom to allow the front panel to clear the bottom flange of the heater compartment (see Figure 2). FIGURE 3 - HEATER IN PLACE 7. Remove the knockout(s) at the upper and lower left corners of the blower section (see Figure 4). KNOCKOUT LOCATIONS FIGURE 4 - KNOCKOUT LOCATIONS FIGURE 2 - HEATER LIFTED UP NOTE: Units with Heat Kit 2TP require two knockouts in the top and bottom. This is to accommodate the six wires required for this heater (3 wires per knockout). All other heaters use only 3 wires with 1 knockout in the top and 1 knockout in the bottom of the blower section. 2 Unitary Products Group

3 8. Install strain relief bushings in the knockout(s) in the upper and lower left corner of the blower section, as shown in Figure Run electric heater wires through protective tubing and strain relief bushing (one at a time) between the blower section and compressor section (see Figure 7). STRAIN RELIEF BUSHINGS FIGURE 5 - STRAIN RELIEF BUSHING INSTALLED 9. Run wiring up through the strain relief bushings between the heater and blower compartments and slide protective tubing over wires where they pass through strain relief (see Figure 6). FIGURE 7 - HEATER WIRE ENTERING COM- PRESSOR SECTION 11. Pull enough length of wire to reach under the control panel to the Terminal Block 1 from the compressor compartment. 12. Connect wires to Fuse Block on the electric heater as shown in Figure 8. FIGURE 6 - PROTECTIVE TUBING IN PLACE NOTE: The tubing is meant to protect the wiring from damage due to clamping in the strain relief bushing. FIGURE 8 - WIRING TO HEATER ASSEMBLY 13. Connect the control wiring harness from the electric heater to the control wiring plug found in the electric heat compartment. The plug and wiring will be found in the top left corner of the electric heat compartment, next to the knockouts. 14. Tighten the strain relief bushing, clamping the protective tubing around the electrial wires. (see Figure 9). Unitary Products Group 3

4 15. Secure wires with wire ties in the electric heat and blower section (see Figures 8, 9). 17. Apply silicon sealant in and around the strain relief connectors to thoroughly seal the holes between the blower compartment and the electric heat compartment (see Figure 11). SEAL WITH SILICON WIRE TIES FIGURE 9 - INSTALLED WIRE IN BLOWER SEC- TION 16. Secure the wires in the compressor section to the suction line. This is to keep the wires from interfering with the passage of the filters. a. IF MAIN POWER CONDUIT IS PRESENT: secure wires to main power conduit with two wire ties. b. IF MAIN POWER CONDUIT IS NOT PRESENT: Bundle wires and secure to each other with two wire ties. FIGURE 11 - APPLY SILICON SEALANT 18. Pull electric heat wires under the control panel to the Terminal Block 1 and connect to the vacant lugs as shown in Figure 12. NOTE: WIRES ATTACHED TO TOP OF TERMINAL BLOCK 1. BLACK BLUE RED FIGURE 10 - HEATER WIRES SECURED TO SUC- TION LINE FIGURE 12 - HEATER WIRES INSTALLED IN TER- MINAL BLOCK Close all unit doors and secure. 20. Reconnect the power to the unit. 4 Unitary Products Group

5 TABLE 2: ELECTRICAL DATA DH/DU (6-1/2 TON) UNIT - W/O POWERED CONVENIENCE OUTLET 60HZ Size TABLE 3: ELECTRICAL DATA DH/DU (6-1/2 TON) UNIT - W/POWERED CONVENIENCE OUTLET 60HZ Size Unitary Products Group 5

6 TABLE 4: ELECTRICAL DATA DM/DL (7-1/2 TON) UNIT - W/O POWERED CONVENIENCE OUTLET 60HZ Size None TP TP TP TP None TP TP TP TP None TP TP TP TP None TP TP TP TP TABLE 5: ELECTRICAL DATA DM/DL (7-1/2 TON) UNIT - W/POWERED CONVENIENCE OUTLET 60HZ Size None TP TP TP TP None TP TP TP TP None TP TP TP TP None TP TP TP TP Unitary Products Group

7 TABLE 6: ELECTRICAL DATA DH/DU (7-1/2 TON) UNIT - W/O POWERED CONVENIENCE OUTLET 60HZ Size None TP TP TP TP None TP TP TP TP None TP TP TP TP None TP TP TP TP TABLE 7: ELECTRICAL DATA DH/DU (7-1/2 TON) UNIT - W/POWERED CONVENIENCE OUTLET 60HZ Size None TP TP TP TP None TP TP TP TP None TP TP TP TP None TP TP TP TP Unitary Products Group 7

8 TABLE 8: ELECTRICAL DATA DF/DS (7-1/2 TON) UNIT - W/O POWERED CONVENIENCE OUTLET 60HZ Size None TP TP TP TP None TP TP TP TP None TP TP TP TP None TP TP TP TP TABLE 9: ELECTRICAL DATA DF/DS (7-1/2 TON) UNIT - W/POWERED CONVENIENCE OUTLET 60HZ Size None TP TP TP TP None TP TP TP TP None TP TP TP TP None TP TP TP TP Unitary Products Group

9 TABLE 10: ELECTRICAL DATA DM/DL (8-1/2 TON) UNIT - W/O POWERED CONVENIENCE OUTLET 60HZ Size TABLE 11: ELECTRICAL DATA DM/DL (8-1/2 TON) UNIT - W/POWERED CONVENIENCE OUTLET 60HZ Size Unitary Products Group 9

10 TABLE 12: ELECTRICAL DATA DH/DU (8-1/2 TON) UNIT - W/O POWERED CONVENIENCE OUTLET 60HZ Size TABLE 13: ELECTRICAL DATA DH/DU (8-1/2 TON) UNIT - W/POWERED CONVENIENCE OUTLET 60HZ Size 10 Unitary Products Group

11 TABLE 14: ELECTRICAL DATA DF/DS (8-1/2 TON) UNIT - W/O POWERED CONVENIENCE OUTLET 60HZ Size TABLE 15: ELECTRICAL DATA DF/DS (8-1/2 TON) UNIT - W/POWERED CONVENIENCE OUTLET 60HZ Size Unitary Products Group 11

12 TABLE 16: ELECTRICAL DATA BP/BA (7-1/2 TON) UNIT - W/O POWERED CONVENIENCE OUTLET 60HZ Size TABLE 17: ELECTRICAL DATA BP/BA (7-1/2 TON) UNIT - W/POWERED CONVENIENCE OUTLET 60HZ Size TABLE 18: ELECTRIC HEAT MULTIPLIERS Nominal 240 Rating Cap. Multiplier Subject to change without notice. Printed in U.S.A. Copyright by Unitary Products Group All rights reserved. TABLE 19: UNIT VOLTAGE LIMITATIONS Power Rating Min. Max. / UAI-A-0105 Supersedes: Nothing Unitary 5005 Norman Products York OK Group Drive 73069