Workshop Manuals Factory service & repair Aston Martin
Aston Martin DB7 Factory Workshop Manual Volume 2: Electrics, Body and Air Conditioning (1994-1998)04 · Air conditioning
04 · Heating & A/C

General description: Specifications

Make
Aston Martin
Model
DB7 Factory Workshop Manual Volume 2: Electrics, Body and Air Conditioning
Year
1994–1998
Section
General description › Specifications
Air conditioningSpecifications

Specifications

Refrigerant Charge weight Manufacturer and Type
Designation
Refrigerant R134A
(HFC134A)		 1050 g ± 50 g ICI Klea or equivalent
Compressor Configuration Manufacturer
Type & model
SD-7H15		 7 cylinder Sanden
155 cm³ per revolution
Compressor Lubricants System Capacity Manufacturer and Type
Designation
Polyalkylene glycol (PAG)		 120-150 ml Sanden SP 20

Standard for Recovery, Recharge and Recycle Equipment.

Feature Requirement
Recovery rate 0.014-0.062 m³/min. (1.36 kg in 20 minutes)
Cleaning capability 15 ppm moisture; 4000 ppm oil; 330 ppm non-condensable gases in air
Oil separator With hermetic compressor and automatic oil return
Vacuum pump 2 stage 0.07 -0.127 m³/min.
Filter Replaceable with moisture indicator
Charge Selectable charge weight and automatic delivery
Hoses Dedicated Refrigerant R134A port connections.
Charge pressure Heating element to increase pressure

Compressor Belt Tension

Type Condition and range
Vee belt All figures apply to a cold belt.
Burroughs method New belt 578 to 623 N
If tension is below 356 N, reset at 512 to 534 N
Clavis method New belt 147 to 153 Hz
If tension is below 110 Hz, reset at 132 to 138 Hz

Note: The tension is measured midway between the compressor and crankshaft pulleys. For a new belt, rotate engine three revolutions minimum and then re-check the tension.

Parts & tools for this job For 1994 Aston Martin DB7

Links open Amazon search results in a new tab. As an Amazon Associate I earn from qualifying purchases.