SPB − 3 to 5 Ton R−410A Heat Pump
Outdoor Units
ARI RATINGS − INDOOR COIL / AIR HANDLER SUBSTITUTION
Substituting Coils in the ARI Tables
Most R−22 and R−410A indoor coils and air handlers are
the same except for the factory installed expansion
device. C33 coils can be used in place of the CX34 coils,
CB26UH−R, CB30M and CB31MV air handlers can be
used in place of the CB26XUH, CBX32M and CBX32MV,
respectively.
The expansion device is based on the size of the outdoor
unit. The factory installed RFC or TXV on the
C33/CB26UH−R/CB31MV/CB30M must be replaced to
correspond to the outdoor unit. The correct TXV’s are:
3 ton heat pumps
49L24
4−5 ton heat pumps
91M02
Example:
A four−ton heat pump is being installed. The ARI table
shows that CBX32MV−048 is a matching air handler. A
CB31MV−51 with a 91M02 TXV can be used in its place.
UP−FLOW COILS
R−410A
R−22
CX34−18/24A−6F
=
C33−24A−2
CX34−18/24B−6F
=
C33−24B−2
CX34−18/24C−6F
=
C33−24C−2
CX34−19A−6F
=
C33−19A−2
CX34−25A−6F
=
C33−25A−2
CX34−25B−6F
=
C33−25B−2
CX34−30A−6F
=
C33−30A−2
CX34−30B−6F
=
C33−30B−2
CX34−30C−6F
=
C33−30C−2
CX34−31A−6F
=
C33−31A−2
CX34−31B−6F
=
C33−31B−2
CX34−36A−6F
=
C33−36A−2
CX34−36B−6F
=
C33−36B−2
CX34−36C−6F
=
C33−36C−2
CX34−38A−6F
=
C33−38A−2
CX34−38B−6F
=
C33−38B−2
CX34−42B−6F
=
C33−42B−2
CX34−43B−6F
=
C33−43B−2
CX34−43C−6F
=
C33−43C−2
no equivalent
C33−44C−2
CX34−44/48B−6F
=
C33−48B−2
CX34−44/48C−6F
=
C33−48C−2
CX34−49C−6F
=
C33−49C−2
CX34−50/60C−6F
=
C33−50/60C−2
CX34−60D−6F
=
C33−60D−2
CX34−62C−6F
=
C33−62C−2
CX34−62D−6F
=
C33−62D−2
AIR HANDLERS
R−410A
R−22
CBX26UH−018
=
CB26UH−018−R
CBX26UH−024
=
CB26UH−024−R
CBX26UH−030
=
CB26UH−030−R
CBX26UH−036
=
CB26UH−036−R
CBX26UH−042
=
CB26UH−042−R
CBX26UH−048
=
CB26UH−048
CBX26UH−060
=
CB26UH−060−R
CBX32M−018/024
=
CB30M−21/26
CBX32M−030
=
CB30M−31
CBX32M−036
=
CB30M−41
CBX32M−042
=
CB30M−46
CBX32M−048
=
CB30M−51
CBX32M−060
=
CB30M−65
CBX32MV−018/024
no equivalent
CBX32MV−024/030
no equivalent
CBX32MV−036
=
CB31MV−41
CBX32MV−048
=
CB31MV−51
CBX32MV−060
=
CB31MV−65
CBX32MV−068
no equivalent
