-
+
B
C
D
A
E
Vehicle
Chassis
12
Installation Procedures
Electrical Connections
Important:
Negative battery terminal must always be grounded.
If a vehicle is equipped with switch on negative
battery wire, install additional 20 A fuse in negative
wire of heater’s harness.
A. MainHeater Harness
...................................................
B. Power Harness
............................................................
C. SwitchHarness
............................................................
D. * Fuel MeteringPumpHarness
........................................
E. * Water PumpHarness
......................................................
• Connects switchandpower harness to theheater harness.
( * in some cases power to fuel meteringpump).
• 2 core harness (red, brown).
• Connect redwire to fuse link and terminal.
• Attach ring terminal to vehicle battery (+).
• Connect brownwire to vehicle battery (-) using ring
terminal provided.
• 20 amp fuse - 12V.
15 amp fuse - 24V.
• 4 core harness (red/yellow, brown, yellow, blue/white).
• Run to location of control option.Make terminal connec-
tions at control option. Espar has 2 available switches
see control option instructions on following pages.
• 2 core harness (green, green) or (green, brown).
• Connect to fuel metering pump using terminals
and protective seals + connector block (no polarity
required).
• 2 core harness (black, brown).
• Connect tomain harness at heater.
HydronicHeaters
(Multi Functional)
7DayTimer
All parts needed are includedwith the kit.
( * )
indicates external mounted fuel and or water pump versions of Hydronics.
Caution:
To avoid potential short circuit
damage during installation, insert
20 amp fuse on power harness
after all electrical connectionsare
complete.
Connector
Block
Note:
All harnesses should be cut to length.
All exposed electrical connections should be
coatedwith protective grease.
InstallationNote:
Wiremust be inserted into fuse holder prior
to terminating.
