Danfoss R22 User Manual

Electrical data, connections and wiring
The motor protection module comes
preinstalled within the terminal box. Phase
sequence protection connections and thermistor
connections are pre-wired. The module must be
connected to a power supply of the appropriate
voltage. The module terminals are 0.25" size
Faston type.
The motor protection module comes
preinstalled within the terminal box and has
pre-wired thermistor connections. The module
must be connected to a power supply of the
appropriate voltage. The module terminals are
0.25" size Faston type except for 24V DC module
(screw connection).
SM/SZ 175-185 - J, K, P, S, U, W,
X, Y versions
The terminal box is provided with 2 double
knockouts for the power supply and 3 knockouts
for the safety control circuit.
The 2 power supply, double knockouts
accommodate the following diameters:
Ø 1”3/4 hole (for a 1”1/4 conduit) and Ø1”3/8
hole (for a 1” conduit)
Ø1.26” hole & Ø1” hole
The 3 other knockouts are as follows:
Ø 0.81”, Ø 7/8” (for a 1/2” conduit) and Ø 0.65”
The compressor terminal box according to IEC529 is IP54 for all models when correctly sized IP54
rated cable glands are used.
• First numeral, level of protection against contact and foreign objects
5 - Dust protected
• Second numeral, level of protection against water
4 - Protection against water splashing.
IP rating
SY/SZ 240 – 300 – 380 The terminal box is provided with 2 triple
knockouts and 1 single knockout for power
supply and 4 double knockouts for the safety
control circuit.
The 3 power supply knockouts accommodate the
following diameters:
• Ø 2 inch (UL 1"1/2 conduit) & Ø 1.72 inch (UL
1"1/4 conduit) & Ø 1.36 inch (UL 1" conduit)
• Ø 1.59 inch (ISO40) & Ø 1.27 inch (ISO32) & Ø 1
inch (ISO25)
• Ø 1 inch (ISO25)
The 4 others knockouts are as follows:
• Ø 0.89 inch (PG16) (UL 1/2") & Ø 0.65 inch
(ISO16) (x2)
• 0.81 inch (ISO20 or PG13.5) (x2)
Black
Blue
Brown
M1 - M2
Control circuit
Faston 1/4” tabs
Power supply
Sump heater
Module
power supply
}
}
LN12 1412 11
Internal control contact
Safety
circuit
Thermistor
connection
Module power
LNS1 S2 M1 M2
L1 L2 L3
Black Blue Brown
Phase sequence input
Internal control contact
Safety
circuit
Thermistor
connection
Module power
Motor Protection
12
14
11
N
2
1
Module
L1
Cover holding screw (x2) - Torque: 1.6 ft.lb
Faston 1/4" tabs
Terminal box
Power supply
Sump heater
Protection module
power supply
Safety circuit
Application guidelines
16
FRCC.PC.003.A5.22

Danfoss R22 Specifications

General

Brand	Danfoss
Model	R22
Category	Air Compressor
Language	English