Air Conditioning climate
control Schematic and Illustrations All diagrams are drawn from scratch by us and used reference
from various Jaguar resources to enable an as complete as possible
technically correct set of data sheets E&OE
You
can download these the Aircon schematics as an Adobe PDF file
of for better clarity and off line viewing and a link is provided
at the bottom of this page.
these are for the most part the same on
all XJ cars built after 1978 however as yet do not include
data for the MKIII system which was fitted to some cars built
later in production run of series. This data will be on this
site at a later date.
The MKIII system is most notable
for the large black ECU mounted on the right hand side of
the main AC unit and has many multi pin small connectors on
it. Under no circumstances should any of the connectors be
allowed to short with each other or the vehicles positive
or negative supplies as instant irreversible damage WILL occur
Downloads
Delanair MKII (MK2) Air Con. System PDF
Includes:
Vacuum schematic
Wiring diagram schematics
Please note: the new Flashpaper diagrams are always the most up to date versions.
Jaguar Delanair MK2
Jaguar Delanair MK2
Temperature
Thermostat
Location:
Left hand side of AC unit
Where on inlet pipe just above side air duct
Fixing: two pozidrive No.3 screws
Amplifier
Module
Location:
Under the AC unit on the LH Side
Where: Behind the Main relay
Fitting: One large clip, pulls forward to remove
Ranco
Thermostat
LOCATION:
RH Side of AC unit
Where: Top Middle above linkages
Fitting: One 9/16 Nut (note: the probe is inserted at least
10cmm into the evaporator
Resistor
Pack
Location:
left hand side of AC unit
Where: just by the heater outlet pipe
Fixing 3 pozidrive No. 3 screws
Main
Relay
Where:
Near the bottom where the console ends.
Fixing: 2 x 10mm nuts (requires a slim sided socket to remove
and as a earth point on one of the fixings which also holds
the vacuum solenoid.
Typical
Vacuum Actuator
This
one is located on the Left hand side of the AC Unit
No Aircon
main relay
Location: Right hand side of AC Unit
Where: lower edge forward of the bulkhead
Fixings: Hidden by a cover but held by a tab and 1 x 10mm
nut
Servo Unit Drive control
Location:
Right hand side of AC Unit
Where: lower edge forward of the bulkhead
Fixings: Hidden by a cover but held by a tab and 1 x 10mm
nut
Vacuum
Solenoid
Location:
Left hand side of AC unit
Where: to the Left of the main relay
Fixing: 10mm nut shared with Main relay and earth point. Requires
the use of a slim walled socket.