Johnson Controls P70 Mode D'emploi page 10

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.
Table 2: Standard P70, P72, and P170 Controls for Low Pressure Applications
Code Switch
Number Action
P70AB-12
SPST
Open Low
P170AB-12
P70AB-1
SPST
Open Low
P70AB-2
SPST
P70CA-1
Open High
SPDT
P70EA-10 1 to 3 Open Low
1 to 2 Close Low
P72AA-1
DPST
Open Low
P72AB-1
SPST
P170AB-2
Open Low
SPST
P170CA-1
Open High
SPST
P70AA-5
Open Low
SPST
P70CA-4
Open High
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
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Range
Differential
psig
(kPa)
MICRO-SET Controls (For Non-Corrosive Refrigerants)
12 in. Hg
to 80
Max 35 (241)
(-41 to 551)
ALL-RANGE Controls (For Non-Corrosive Refrigerants)
Max 50 (345)
20 in. Hg
to 100
(-68 to 690)
Max 50 (345)
ALL-RANGE Controls (Ammonia Compatible)
20 in. Hg
to 100
Max 50 (345)
(-68 to 690)
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.
Pressure
psi (kPa) Connection
36 in. Cap. With
1/4 in. Flare Nut
Min 5 (34)
1/4 in. Male Flare
Connector
1/4 in. Male Flare
Connector
Min 7 (48)
36 in. Cap. With
1/4 in. Flare Nut
36 in. Cap. With
1/4 in. Flare Nut
5 (34) 1/4 in. Male Flare
Fixed Connector
36 in. Cap. With
1/4 in. Flare Nut
Min 7 (48)
1/4 in. Male Flare
Connector
Min 7 (48)
1/4 in. SS Female NPT
Limited Knob
Adjustment
Supplied,
but not assembled
Supplied,
but not assembled
None
None
None
Supplied on
Cut-out
Supplied on
Cut-out
None
None
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