Pan No. | 307g0F089 | Date |
Supemedes 30790G082Page T of 12
INSTALLATION
Electrical Connections
All wiring to unit must comply with the national Electrical Code NFPA No. 70 or local codes, where they prevail.
ANY ALTERNATION OF INTERNAL WIRING CAN VOID UNDERWRITER'S APPROVAL, ARI CER- TIFICATION AND MANUFACTURE'S LIMITED WARRANTY.
The series and rating plates indicate the operating voltages, phase, ampacities and maximum fuse size and electric heater ratings. Units must never be installed where voltage exceeds 110% of higher voltage indicated on rating plate, or less than the minimum operating voltage on rating plate,
Ratings and BTU output are based on 230 V, 60 HZ supply. Voltages other than this rated voltage will alter the BTU output of this unit. For specific ratings at voltages or frequencies other than that designated con- tact your distributor or the manufacture.
FAILURE OF THE COMPRESSOR AS A RESULT OF OPERATION ON IMPROPER VOLTAGE VOIDS THE COMPRESSOR REPLACEMENT WARRANTY.
Multiple power supply connections must be used when total unit amp draw Is over 48 amps. If multiple power supply connections are used, separate fused disconnects must be Installed for each circuit between the main panel and the supply terminals In the unit.
Circuit No. 1, terminals L1 and L2 on the terminal block Is always used to supply power to the heat pump section. See Figure 3, 4, and 5.
Circuit No. 2, terminals L3 and L4 on terminal block (units up to 11.0 KW) or fuse block (units over 11.0 is always used to supply power to electdc heaters.
Single entry supply may be used on units, when total amp draw, (heat pump plus heaters) Is less then 48 amps, and is not In violation of prevailing electrical codes.
Units with 7.2 KW heaters or less are supplied with Internal jumpers between 1.1& 1.3, and L2 & L4 for single entry supply. Remove jumpers between L1 & I..3 and 1.2 & L4 when multiple entry supply is to be used.
Fuse and wire sizing must be in accordance with prevailing electrical codes. See Product Specification sheets or Unit Sedes and Rating Plate for ampacities end maximum fuse.
