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SERVICE ACCESS |
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Access to all serviceable components is provided by the fol- | with local codes or, in their absence, with the N.E.C./C.E.C. | ||||||||||||||
Voltage tolerances which must be maintained at the com- | |||||||||||||||
lowing removable panels: |
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| pressor terminals during starting and running conditions are | ||||||||||||
• Blower compartment |
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• Gas control/electrical service access |
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Refer to Figure 7 for location of these access panels and min- | mechanical strain relief. |
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imum clearances. |
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THERMOSTAT |
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| unit. If any of the wire supplied with the unit must be replaced, | ||||||||||||
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The room thermostat should be located on an inside wall | diagram. |
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approximately 56" above the floor where it will not be subject | Electrical line must be sized properly to carry the load. Each | ||||||||||||||
to drafts, sun exposure or heat from electrical fixtures or | |||||||||||||||
appliances. Follow manufacturer's instructions enclosed with | unit must be wired with a separate branch circuit fed directly | ||||||||||||||
the thermostat for general installation procedure. Four color | from the meter panel and properly fused. |
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coded insulated wires (minimum #18 AWG) should be used | Refer to Figure 4 for typical field wiring and to the appropriate | ||||||||||||||
to connect thermostat to unit. See Figure 3. |
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| unit wiring diagram for control circuit and power wiring infor- | ||||||||||
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| HEAT |
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POWER AND CONTROL WIRING |
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| mation. |
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| SHOULDANTICIPATORBESET | 0.35 |
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**=Minimumwiresizeof18AWGTHERMOSTAT | UNIT** | TERMINALSTRIP |
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| AMPSFORALLMODELS. |
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Field wiring to the unit must conform to provisions of the cur- |
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| NOTE: |
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rent N.E.C. ANSI/NFPA No. 70 or C.E.C. and/or local ordi- |
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| wireshouldbeusedforall |
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GY |
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| 24VOLT |
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| fieldinstalled24voltwire. |
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| PROGRAMMABLE |
| WC |
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| THERMOSTATONLY |
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FIGURE 3 - TYPICAL FIELD CONTROL WIRING DIAGRAM
COMPRESSORS
Units are shipped with compressor mounting
REFER TO ELECTRICAL
DATA TABLES TO SIZE
THE DISCONNECT
FIGURE 4 - TYPICAL FIELD POWER WIRING DIAGRAM
Loosen compressor mounting bolts a half turn before operating unit.
6 | Johnson Controls Unitary Products |
