Note:
Proper mounting angle of the fuel pump isneces-
sary to allow any air or vapor in the fuel lines to
pass through the pump rather than cause a
blockage.
8
Installation Procedures
HeaterMounting
Heater bracket
Hydronic
Water Heater
Heater bracket
Inside frame
mounting bracket
Inside frame rail
Mount the heater in the heater bracket and securewith hard-
ware provided. If heater is not a boxed unit, mount bracket
onto inside frame rail bracket. Boxed unit can also be
secured to the inside frame bracket or mounted to theCross
FrameMountingTray.
1
Cross FrameMountingTray
2
Hydronic 4/5 box
3
Inside framemounting bracket
1
Heater bracket
2
HYDRONIC
3
Fastening screw
For “S”and gasoline version heaters
which have external
fuel metering pumps:
• Choose a protectedmounting location close to the fuel
pick-up pipe and heater.
• Using the bracket and rubber mount provided, install fuel
pump as shown.
15° to
vertical
15°
Espar Heater Systems
1
2
3
HydronicD4SCboxedunit P/N 25 2822 57 04 55
(CA 2257 55)
HydronicD5SCboxedunit P/N 25 2822 19 05 55
(CA 2219 55)
Mounting
thru bolt
