Specifications

IM 1049-4 / Page 19 of 36
Changing PSC Fan Motor Speed
Thefanmotorcanbechangedfromhightolowspeedorvice
versabyinterchangingthewiresontheblackandredlabeled
terminalsonthemotorterminalblock.
DANGER
Hazardous Voltage!
The installer must determine and follow all appli-
cable codes and regulations. This equipment pres-
ents hazards of electricity, rotating parts, sharp
edges, heat and weight. Failure to read and follow
these instructions can result in property damage,
severe personal injury or death.
WARNING
Sharp edges can cause personal injury. Avoid contact with them.
Table 5: Fan Motor Voltage ane Terminal Slots
CCH, CCW R410-A
Unit Size
Volts and Number of Terminal Slots Factory
208V 460V 575V Fan Speed
007 n/a n/a n/a n/a
009 n/a n/a n/a High
012 n/a n/a n/a High
015 4 – – Low
019 4 – – Low
024 4 4 – High
030 4 4 – High
036 4 6 – High
042 4 6 6 High
048 4 6 6 Low
060 4 6 6 High
Unit Size 007 through 012 (115-60-1),
(208/230-60-1) and (265-60-1)
Tochangebetweenhighandlowspeed;interchangethered
andblackwires.
Figure 21: Sizes 009 through 012 (115/60-1), (208/230-60-
1), (265-60-1)
Unit Size 015 through 036 (208/230-60-1)
and (265-60-1)
Fanmotorsonunitsizes019-036,inboth208/230-60-1and
265-60-1voltages(Figure 22)haveafour-positionterminal
block.Tochangebetweenhighandlowspeed,interchange
theredandblackwires.
Figure 22:Sizes 019 through 036 (208/230-60-1), (265-60-1)
Unit Size 030 and 036 (460-60-1)
Fanmotorsonunitsizes030and036,460-60-1(Figure 23)
haveafour-positionterminalblock.Highandlowspeedscan
beinterchangedbyswitchingthewiresontheblackandred
terminals.
Figure 23: Sizes 030 through 036 (460- 60-1)
Unit Size 042 through 060
Fanmotorsonunitsizes042-060(Figure 24 and Figure 25)
haveasix-positionterminalblock.Motorsforthesesizesare
factory wired for high speed. For low speed operation, move
theblackterminal(3)totheredterminal(6)andtheblack
andblueterminals(3&4)receiveajumper.
Figure 24: Sizes 042 through 060 (460-60-1)
Figure 25: Sizes 042 through 060 (460/575-60-1) Low
Speed