York DNH018 Installation Manual

Also see for CHAMPION PLUS DNH018: Technical guide

York DNH018 Installation Manual Manual pdf 31 page image

66324-YIM-B-1004Unitary Products Group 31TYPICAL WIRING DIAGRAM NOTES(SEE FIGURES 16, 17, 18 AND 19)1. All field wiring to be accomplished following city, localand/or national codes in effect at time of installation ofthis unit.2. Motors are inherently protected.3. See unit nameplate for maximum fuse size and minimumcircuit ampacity.4. Unit factory wired for low or medium speed indoor bloweroperation to change motor speed connect speed tapwires from indoor blower motor per Detail B (Figure 23)tape unused speed tap wires to prevent shorting andsecure near M2 contactor.5. Select indoor blower speed to remain within the temper-ature rise range on the nameplate in heating and toobtain approximately 400 CFM/Ton in cooling.6. If both LR and ASCT are present, wire 801/BL and 805/BL are connected to ASCT-3 if LR only is present wire801/BL and 805/BL are connected to M1 coil. If ASCTonly is present wire 202/Y is connected to ASCT-3. Ifneither LR or ASCT are present, Wire 202/Y is connectto M1 coil.FIGURE 23 - WIRING DIAGRAM DETAIL B (460 & 575-3-60 POWER SUPPLY)11. See Figures 18 and 19.Label all wires prior to disconnection when servic-ing controls. Wiring errors can cause improper anddangerous operation if any of the wire as suppliedwith this unit must be removed it must be replacedwith type 105°C, 600V wire or equivalent clearlyrenumbered for identification. Verify proper opera-tion after servicing.Open all disconnects before servicing this unit.FIGURE 24 - TYPICAL WIRING DIAGRAMLEGEND 11. See Figures 16, 17, 18 and 19 ! " " # $ #% # & $ # # '( ' ( # ") ( '* & ' ( '( ++ ⊗ '( ,,,,,,,,,,,, ( ( #&# & '( & & '( ' ((& & '( ' (('&' & (

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