
Safety Devices - R407C Cooling only & Heat pump
115
1) ALL SPECIFICATIONS ARE SUBJECTED TO CHANGE BY THE MANUFACTURER WITHOUT PRIOR NOTICE.
M4AC020C/CR M4AC025C/CR
NC NC
OPEN kPa / psi 3243 / 470 3243 / 470
CLOSE kPa / psi 2650 / 384 2650 / 384
NC NC
OPEN kPa / psi 124 / 18 124 / 18
CLOSE kPa / psi 193 / 28 193 / 28
NC NC
OPEN kPa / psi
48 / 7 48 / 7
CLOSE kPa / psi 152 / 22 152 / 22
DIFFERENTIAL PRESSURE SWITCH YES YES
ANTI-FREEZE PROTECTION SENSOR YES YES
OVER PRESSURE RELIEF VALVE
YES YES
ANTI-FREEZE HEATER ON BPHE YES YES
YES YES
YES YES
M4AC030C/CR M4AC040C/CR
NC NC
OPEN kPa / psi 3243 / 470 3243 / 470
CLOSE kPa / psi
2650 / 384 2650 / 384
NC NC
OPEN kPa / psi 124 / 18 124 / 18
CLOSE kPa / psi
193 / 28 193 / 28
NC NC
OPEN kPa / psi 48 / 7 48 / 7
CLOSE kPa / psi 152 / 22 152 / 22
BUILT IN ON BOARD BUILT IN ON BOARD
DIFFERENTIAL PRESSURE SWITCH YES YES
ANTI-FREEZE PROTECTION SENSOR YES YES
DISCH. THERMOSTAT SETTING °C / °F 110 / 230 110 / 230
OVER PRESSURE RELIEF VALVE YES YES
ANTI-FREEZE HEATER ON BPHE YES YES
YES YES
YES YES
M4AC050C/CR M4AC060C/CR
NC NC
OPEN kPa / psi 3243 / 470 3243 / 470
CLOSE kPa / psi 2650 / 384 2650 / 384
NC NC
OPEN kPa / psi 124 / 18 124 / 18
CLOSE kPa / psi 193 / 28 193 / 28
NC NC
OPEN kPa / psi
48 / 7 48 / 7
CLOSE kPa / psi 152 / 22 152 / 22
BUILT IN ON BOARD BUILT IN ON BOARD
DIFFERENTIAL PRESSURE SWITCH YES YES
ANTI-FREEZE PROTECTION SENSOR YES YES
DISCH. THERMOSTAT SETTING °C / °F 110 / 230 110 / 230
OVER PRESSURE RELIEF VALVE YES YES
ANTI-FREEZE HEATER ON BPHE
YES YES
YES YES
YES YES
TYPE
PUMP OLP
COMPRESSOR OLP
MODEL
HIGH PRESSURE
SWITCH
TYPE
SAFETY DEVICE
LOW PRESSURE
SWITCH (COOLING
ONLY)
TYPE
PUMP OLP
COMPRESSOR OLP
PHASE PROTECTION
LOW PRESSURE
SWITCH (HEAT
PUMP)
MODEL
HIGH PRESSURE
SWITCH
TYPE
LOW PRESSURE
SWITCH
(COOLING ONLY)
TYPE
SAFETY DEVICE
PHASE PROTECTION
MODEL
COMPRESSOR OLP
HIGH PRESSURE
SWITCH
LOW PRESSURE
SWITCH (COOLING
ONLY)
PUMP OLP
TYPE
TYPE
SAFETY DEVICE
LOW PRESSURE
SWITCH (HEAT
PUMP)
TYPE
LOW PRESSURE
SWITCH (HEAT
PUMP)
TYPE
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