EPR4 - ROOFTOP PACKAGE

EPR4AX1 / EPR4BX1

Built with high performance & durability in mind, this ERP4 system is a robust & heavy-duty HVAC suitable for trucks, wheel loaders, excavators, drills & other heavy-duty vehicles. Rated at 4.5 kW cooling capacity with optional heating. This equipment is available in 12VDC or 24VDC configurations.

VEHICLES

  • DRILL
  • TRUCK
  • WHEEL LOADER
  • CONSTRUCTION
  • INDUSTRRIAL
  • RAIL SPECIAL VEHICLES

SPECIFICATIONS

METRICIMPERIAL
Cooling Capacity4.5 kW15,354 BTU
Heating Capacity (with Optional Kit)4.0 kW13,648 BTU
Fan Speeds33
Air Flow150 l/s318 CFM
Power Supply12V / 24V12V / 24V
Current Draw40A / 20A40A / 20A
RefrigerantR134aR134a
Maximum Ambient Temperature46ºC115ºF
Weight (nominal)47 Kg103.4 lbs
Technical Manual ReferenceHD0019477HD0019477
Dimension L X W X H804mm X 650mm
X 364mm		31.7in X 25.6in X 14.3in

SPARE PARTS LIST

Sl.No.PART NO.DESCRIPTIONQTY
1H0032385EVAPORATOR HEATER COIL2
2H0002358CONDENSER COIL2
3AU400050
H0088451		BLOWER ASSEMBLY 3SPEED 12V (EPR4AX1)
BLOWER ASSEMBLY 3SPEED 24V (EPR4BX1)		1
1
4H0044857PLENUM RETURN AIR FILTER MEDIA1
5H0097521
H0088425		CONDENSER FAN ASSEMBLY 280MM 12V (EPR4AX1)
CONDENSER FAN ASSEMBLY 280MM 24V (EPR4BX1)		1
2
6AU531422RECEIVER DRIER 134A2
7UE016THERMOSTAT DEICE STUD2
8UE335SWITCH 3-SPEED C/W NUT2
9UE064HIGH / LOW PRESSURE SWITCH1
10H0092214TX VALVE BLK 1.5T R134A1
11H0052679FLEX HOSE #10 MOR-FTG B/HD & STR1
12H0052678FLEX HOSE #8 MOR-FTG B/HD & STR1
13AU661482
AU661483		RELAY 30A 12V (EPR4AX1)
RELAY 20A 24V (EPR4BX1)		3
1
14ERR023RELAY BASE 5 PIN (PANEL MOUNT) AX1
RELAY BASE 5 PIN (PANEL MOUNT) BX1		3
1
15UC451KNOB 1/4 BLACK PLASTIC 21MM DIAMETER2
16H0047048CONDENSER FAN GUARD1
17H0042481EPR4 ROOF SEAL1
18UC048TOGGLE4
19AU821704DIFFUSER ROUND 92MM PVC1
H0283545DIODE FOR EPR4AX11

MAINTENANCE

H0044857
PLENUM RETURN AIR FILTER MEDIA

AU400050
BLOWER ASSEMBLY 3SPEED 12V (EPR4AX1)

H0088451
BLOWER ASSEMBLY 3SPEED 24V (EPR4BX1)

H0097521
CONDENSER FAN ASSEMBLY 280MM 12V (EPR4AX1)

H0088425
CONDENSER FAN ASSEMBLY 280MM 24V (EPR4BX1)

AU531422
RECEIVER DRIER 134A

UE016
THERMOSTAT DEICE STUD

UE335
SWITCH 3-SPEED C/W NUT

UE064
HIGH / LOW PRESSURE SWITCH

H0092214
THERMAL EXPANSION VALVE BLOCK 1.5T R134a

H0002358
CONDENSER COIL

H0032385
EVAPORATOR HEATER COIL

COMPANION ITEMS

PART NO.DESCRIPTION
H0038939Heater Kit (24V)
H0097524Heater Kit (12V)
EB9P4XPressuriser (24V)
HDC150Hydraulic Compressor
AU2961001Electric Compressor (24V)
AU270306EEngine Driven Compressor
AU270307EEngine Driven Compressor
AU270311EEngine Driven Compressor
Back to E-Series Overview
SIGMA Knorr-Bremse Australia

Knorr-Bremse Australia
23 - 29 Factory Street
Granville NSW 2142
Australia
Phone: 1300 643 643
mid.aus@sigma-hvac.com