Johnson Controls Penn P70 Series Product/Technical Bulletin page 9

O
rdering Information
P70, P72, and P170 controls for dual pressure
applications are available in a variety of standard and
non-standard models. Table 1 is a model selection
chart that lists the features on standard dual pressure
control models available through most
Johnson Controls/PENN Authorized Distributors.
Table 1: Standard Model Selection Chart for P70, P72, and P170 Dual Pressure Controls
Model Switch
Code Action
Number
P70LB-6* SPST
P70MA-18*
P70SA-1* Two
Independent
SPDT
P170LB-6* SPST
P170MA-18*
P170SA-1* Two
Independent
SPDT
P70LB-1* SPST
P70MA-1*
P70NA-1
P72LA-1* DPST
P72LB-1*
P72MA-1*
P72NA-1*
P170LB-1* SPST
P170MA-1*
P170NA-1
P70LA-2* SPST
P70MA-2*
*Control models with high pressure side (only) that are UL Listed as Refrigeration Pressure Limiting Controls.
P—P70, P72, and P170 Controls for Dual Pressure Applications Product/Technical Bulletin
Low Pressure Side
psig (kPa)
Range Differential
MICRO-SET Controls for Non-Corrosive Refrigerants
12 in. to 80 Min 5 (34)
(-41 to 552) Max 35 (241)
All Range Controls for Non-Corrosive Refrigerants
20 in. to 100 Min 6 (41)
(-68 to 690) Max 50 (345)
Fixed
(Manual
Reset)
Min 7 (48)
Max 50 (345)
Fixed
(Manual
Reset)
Min 7 (48)
Max 50 (345)
Fixed
(Manual Reset)
All Range Ammonia Compatible Controls
20 in. to 100 Min 7 (48)
(-68 to 690) Max 50 (345)
Table 2 is a type identification matrix that itemizes all
the potential P70, P72, and P170 dual pressure control
types. Not all combinations in Table 2 are
manufactured and available. Figure 13 illustrates the
pressure connection styles available on P70, P72, and
P170 control models.
Contact your Johnson Controls/PENN Authorized
Representative for availability and price.
High Pressure Side
psig (kPa)
Range Differential
(Non-Adjustable)
100 to 500 Fixed
(690 to 3447) Approx. 65 (448)
Lockout Requires
Manual Reset
Fixed at 65 (448)
or
Lockout Requires
Manual Reset
Fixed
Approx. 65 (448)
Lockout Requires
Manual Reset
Fixed at 65 (448)
or
Lockout Requires
Manual Reset
100 to 500 Fixed
(690 to 3447) Approx. 65 (448)
Lockout Requires
Manual Reset
Fixed
Approx. 65 (448)
Lockout Requires
Manual Reset
Fixed
Approx. 65 (448)
Lockout Requires
Manual Reset
100 to 500 Fixed
(690 to 3447) Approx. 65 (448)
Lockout Requires
Manual Reset
Pressure Limited
Connector Knob
Adjustment
36 in. Capillary with Low
1/4 in. Flare Nut CUT OUT
None
1/4 in. Male Flare Low
Connector CUT OUT
None
36 in. Capillary with Low
1/4 in. Flare Nut CUT OUT
None
Low
CUT OUT
None
1/4 in. Male Flare Low
Connector CUT OUT
None
1/4 in. Female None
NPT Connector
9