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Service Specifications

A/C SYSTEM SPECIFICATIONS

Application

Specification

Compressor Type

⁽¹⁾⁽²⁾

Belt Tension

⁽³⁾

Blower Motor

⁽⁴⁾

Blower Motor (Auxiliary)

⁽⁵⁾

Cooling Fan Operation

⁽⁶⁾

Pressure Cut Off Switch ⁽⁷⁾

Opening Pressure

430 psi (2.9 BAR)

Closing Pressure

250 psi (1.7 BAR)

Thermostatic Expansion Valve

⁽⁸⁾

System Component Oil Capacity ⁽⁹⁾

Compressor

In Service

⁽¹⁰⁾ Amount Drained

Replacement

⁽¹⁰⁾ Amount Drained From Original Compressor

With Condenser Replacement

⁽¹⁰⁾ 1.4 ozs. (40 ml)

With Desiccant Bag Replacement

⁽¹⁰⁾⁽¹¹⁾ 1.0 ozs. (30 ml)

With Evaporator Replacement (Front)

⁽¹⁰⁾ 1.4 ozs. (40 ml)

With Evaporator Replacement (Rear)

⁽¹⁰⁾ 1.4 ozs. (40 ml)

With Line Replacement

⁽¹⁰⁾⁽¹²⁾ 0.3 ozs. (10 ml)

System Oil Capacity ⁽⁹⁾⁽¹³⁾

2 Zone System

4.7 ozs. (140 ml)

4 Zone System

6.1 ozs (180 ml)

System Refrigerant Capacity ⁽¹⁴⁾⁽¹³⁾

2 Zone

22.0-23.8 ozs (625-675 g)

4 Zone

27.3-29.1 ozs. (775-825 g)

System Refrigerant Operating Pressures

High Side

⁽¹⁵⁾

Low Side

⁽¹⁵⁾

⁽¹⁾	Variable displacement capacity controlled by an external solenoid. Compressor displacement capacity of 160 cc and operates all of the time from 2-100 percent capacity. Compressor has no clutch.

⁽²⁾	Pressure relief valve is incorporated in the compressor to relieve unusually high system pressure and prevent compressor damage. Valve closes after excessive pressure has been relieved.

⁽³⁾	Belt tension is automatically adjusted by belt tensioner.

⁽⁴⁾	In automatic mode, the climate control system will implement Cold Engine Lock Out (CELO). In CELO, blower motor will operate in low blower/defrost mode until engine reaches a required valve.

⁽⁵⁾	Rear blower motor is controlled by rear auxiliary climate control assembly or by the touch screen on the instrument panel.

⁽⁶⁾	Cooling fan is a variable speed fan. Speed is determined by coolant temperature, transmission oil temperature and A/C pressure. Fan may continue to operate for 4 minutes after engine has been shut off.

⁽⁷⁾	Pressure cut off switch provides the Engine Control Module (ECM) a signal for compressor operation and is a Schrader mounted switch located on the compressor discharge line. If pressure falls below or rises above the specified range, ECM will disengage the compressor clutch.

⁽⁸⁾	Thermostatic Expansion Valve (TXV) is a block-type valve mounted on the evaporator core supply and return lines. It contains an internal sensing bulb to increase the effectiveness of temperature sensing. It only serviceable as a unit.

⁽⁹⁾	Use PAG (WSH-MIC231-B) refrigerant oil.

⁽¹⁰⁾	Add amount of oil that was withdrawn from the system during the recovery process to the amount specified. This amount is typically 1.0-1.4 ozs. (30-40 ml).

⁽¹¹⁾	The desiccant bag removes any retained moisture in the A/C system. The A/C system has an R-134a leak trace dye wafer incorporated into the desiccant bag.

⁽¹²⁾	If system had been operational.

⁽¹³⁾	The 2 zone system allows the front occupants to set individual temperatures for the left and right sides of the interior. The 4 zone system allows front and rear occupants to set individual temperatures (2 front zones and 2 rear zones).

⁽¹⁴⁾	When adding refrigerant to system, engine speed must not exceed 2000 RPM for the first 2 minutes of compressor operation.

⁽¹⁵⁾	Information not available from manufacturer.