York DNH 030 Installation Manual

Also see for DNH 030: Technical guide Installation manual

York DNH 030 Installation Manual Manual pdf 26 page image

282911-YIM-B-080726 Unitary Products GroupTYPICAL WIRING DIAGRAM NOTES(SEE FIGURES 14 THRU 17)1. All field wiring to be accomplished following city, localand/or national codes in effect at time of installation ofthis unit.2. Caution: Label all wires prior to disconnection when ser-vicing controls. Wiring errors can cause improper anddangerous operation. If any of the wire as supplied withthis unit must be removed it must be replaced with type105°C, 600V wire or equivalent clearly renumbered foridentification. Verify proper operation after servicing.3. Motors inherently protected.4. Factory wired for 460V operation.5. See unit nameplate for maximum fuse size and/or circuitbreaker size and minimum circuit ampacity.6. If both LR and ASCT are present, wire 801/BL and 805/BL are connected to ASCT-3. If only LR is present wire801/BL and 805/BL are connected to M1 coil. If onlyASCT is present wire 202/Y is connected to ASCT-3. Ifneither LR or ASCT are present, wire 202/Y is connectedto M1 coil as shown.7. Shunt contact also used with crankcase heater.(optional)8. Unit factory wired for low or medium speed indoor bloweroperation. To change motor speed, connect speed tapwires from indoor blower motor, per Detail A (Figure 18).Tape unused speed tap wires to prevent shorting andsecure.9. Select indoor blower speed to remain within the temper-ature rise range on the nameplate in heating.FIGURE 18: TYPICAL WIRING DIAGRAM DETAIL A (460-3-60 POWER SUPPLY) 11. See Figure 15.LOW SPEED MED SPEED HI SPEED(BR-LI)(BR-LI)(BR-LI)ID FAN MOTORID FAN MOTORID FAN MOTORBLK (HI)BLK / WHT BLK / WHT BLK / WHTBLU (MED) BLU (MED) BLU (MED)BLU / WHT BLU / WHT BLU / WHTRED (LOW) RED (LOW) RED (LOW)BLK (HI) BLK (HI)Open all disconnects before servicing this unit.

/ 28

Related manuals for York DNH 030