Penn P170 Series, Руководство по установке

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P70, P72, and P170 Series Controls for Low Pressure Applications Installation Instructions 2
Table 2: Standard P70, P72 and P170 Control Models for Low Pressure Applications (For High Pressure
Non-Corrosive Refrigerants)
Model
Number Switch Action Range
in. Hg to psig
(kPa) Differential
psi (kPa) Pressure
Connection Maximum
Overpressure
psig (kPa)
P70AA-2 SPST
Opens-Low 0 to 150 psig
(0 to 1,034 kPa) Adjustable
10 to 70
(69 to 483) 36 in. Capillary with
1/4 in. Flare Nut 325
(2,241)
P170AA-2 1/4 in. Male Flare
Connector
Table 3: Standard P70, P72 and P170 Control All-Range Models for Low Pressure Applications (Ammonia
Compatible)
Model
Number Switch Action Range
in. Hg to psig
(kPa) Differential
psi (kPa) Pressure
Connection Maximum
Overpressure
psig (kPa)
P70AA-5 SPST
Open-Low 20 in. Hg to
100 psig
(-68 to 690 kPa) Minimum 7 (48)
Maximum 50 (345) 1/4 in. SS Female
NPT 325
(2,241)
P70CA-4 SPST
Open-High
Table 4: Standard P70, P72 and P170 All-Range Control Models for Low Pressure Applications (For Non-
Corrosive Refrigerants)
Model
Number Switch Action Range
in. Hg to psig
(kPa) Differential
psi (kPa) Pressure
Connection Maximum
Overpressure
psig (kPa)
P70AB-1 SPST
Open-Low 20 in. Hg to
100 psig
(-68 to 690 kPa) Minimum 7 (48)
Maximum 50 (345) 1/4 in. Male Flare
Connector 325
(2,241)
P70AB-2 36 in. Cap. with
1/4 in. Flare Nut
P70CA-1 SPST
Open-High 36 in. Cap. with
1/4 in. Flare Nut
P70EA-10 SPDT
1 to 3 Open-Low
1 to 2 Close-Low 5 (34)
Fixed 1/4 in. Male Flare
Connector
P72AA-1 DPST
Open-Low Minimum 7 (48)
Maximum 50 (345) 36 in. Cap. with
1/4 in. Flare Nut
P72AB-1
P170AB-2 SPST
Open-Low 1/4 in. Male Flare
Connector
P170CA-1 SPST
Open-High