O
rdering Information
P70, P72, and P170 controls for low pressure
applications are available in a variety of standard and
non-standard models.
Table 2 lists the standard models available through
most Johnson Controls/PENN Authorized Distributors.
Table 3 is a model selection matrix that depicts all the
potential P70, P72, and P170 control models. Not all
control models depicted in Table 3 are manufactured
and available.
Figure 11 illustrates the pressure connection styles
available on P70, P72, and P170 control models.
Contact your Johnson Controls/PENN Authorized
Distributors for availability and price.
Table 2: Standard P70, P72, and P170 Controls for Low Pressure Applications
Code
Number
Switch
Action
Range
psig
(kPa)
Differential
psi (kPa)
Pressure
Connection
Limited Knob
Adjustment
MICRO-SET Controls (For Non-Corrosive Refrigerants)
P70AB-12
36 in. Cap. With
1/4 in. Flare Nut
P170AB-12
SPST
Open Low
12 in. Hg
to 80
(-41 to 551)
Min 5 (34)
Max 35 (241)
1/4 in. Male Flare
Connector
Supplied,
but not assembled
ALL-RANGE Controls (For Non-Corrosive Refrigerants)
P70AB-1
1/4 in. Male Flare
Connector
P70AB-2
SPST
Open Low
36 in. Cap. With
1/4 in. Flare Nut
Supplied,
but not assembled
P70CA-1
SPST
Open High
Min 7 (48)
Max 50 (345)
36 in. Cap. With
1/4 in. Flare Nut
None
P70EA-10
SPDT
1 to 3 Open Low
1 to 2 Close Low
5 (34)
Fixed
1/4 in. Male Flare
Connector
None
P72AA-1 None
P72AB-1
DPST
Open Low
36 in. Cap. With
1/4 in. Flare Nut
Supplied on
Cut-out
P170AB-2
SPST
Open Low
Supplied on
Cut-out
P170CA-1
SPST
Open High
20 in. Hg
to 100
(-68 to 690)
Min 7 (48)
Max 50 (345)
1/4 in. Male Flare
Connector
None
ALL-RANGE Controls (Ammonia Compatible)
P70AA-5
SPST
Open Low
P70CA-4
SPST
Open High
20 in. Hg
to 100
(-68 to 690)
Min 7 (48)
Max 50 (345)
1/4 in. SS Female NPT None
NOTE: See Dimensions and Specifications for additional model information including Maximum Working Pressure and
Maximum Over-pressure ratings.
*Models (Code Number) that are UL Listed as refrigeration pressure limiting controls.
P70, P72, and P170 Controls for Low Pressure Applications Product/Technical Bulletin 9
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