1. Locating the tank
The water heater can be mounted anywhere on the
vessel as long as the connections to the engine heat
exchanger are below the engine header tank (Fig.
1). It is best to keep the length of the heat exchanger
hoses short to keep fl ow resistance and heat loss to a
minimum. In many installations the tank heat exchanger
is simply connected inseries with the engine coolant
circuit. In some installations it is connected in parallel
with a fl ow restrictor/diverter.
Principal connection diagram
Engine coolant
Coolant
return
Water tap mixer
Electrical freshwater
pressure pump
Freshwater tank
Safety valve /
drain valve
Cold water in
Hot water out
2. Mounting
The Isotemp Basic, Slim & Slim Square water heaters
are designed to give excellent performance when
mounted horizontally and vertically. The drain / safety
valve must always be at the lowest point. The mounting
brackets can be adjusted to the side on Basic and Slim
for mounting the tank on a bulkhead. Always mount the
tank to a suitable shelf or bulkhead and
keep in mind
the extra weight of the tank when it is full of water.
Fig. 1
000835-3
The choice depends on the specifi c recommendations
of the engine manufacturer and or installer. Please
consult the manufacturer or dealer of your engine for
any recommendations they may have for connecting to
the engine cooling system.
In case the tank has to be placed above the engine
header tank, the engine water hose circuit must be
equipped with an air bleeder valve on the highest point.
This is available as an extra equipment.
See alternative mounting positions fi g. 2.
Slim Square can be standing or laying down fl at, or
placed in other alternative positions as seen in fi g. 7.
Fig. 3 shows Basic, fi g. 4 Basic with double coils, fi g. 5
Slim and fi g. 6 Slim Square water hose connections.
It is to prefer to keep about 30 cm (1 ft.) free space in
front of the water heater for future service measures.
pantherRVproducts.com
