Installation of the heater.
The Mikuni MX series heaters are diesel fired water heaters running off either a 12 or 24 volt DC supply.To ensure good service
from your heater it is important to install it correctly paying attention to al l the details laid out within this instruction manual.
This manual details installation of models MX40 & MX60 as there are many c ommon installation parameters. When the parameters
differ seperate details are given specific to each heater.
Planning the Installation
Take time to plan your installation!
The heater should be sited in an area where:
(i) It will not have items stored against it.
(ii) It will not be exposed to weather.
(iii) It is within the parameters set out in this m anual regarding fuel and power supply.
(iv) It is within the parameters set out in this manual regarding heater mounting.
(v) The exhaust outlet skin fitting is well clear of the water line.
(vi) The exhaust pipe is not touching anything inside the boat which could be damaged by hea t - The exhaust pipe does get hot even
though it is insulated!
Types of installation.
The 'MX' Heaters can be used to heat radiators, matrix heaters or a combination of both. The domestic hot water can be obtained by
passing the hot water from the Mikuni throug h the coil of a calorifier.
The system can be either gravity fed from a header tank or pressurised from the domestic pump with an accumulator tank to allow
for expansion in the system.
Tools for your Installation.
1. Electric drill with slow speed.
2. Crimping pliers.
3. Wire cutters.
4. Metric spanners 8mm to 13mm.
5. Flat blade & posidrive screwdrivers.
6. Sharp knife.
7. Pipe shears [for plastic & rubber water pipe].
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Plumbing requirements.
We recommend plastic plumbing for marine applications as it is easy to fit and modify i.e: If you wish to add an extra radiator/
matrix heater at a later date. The MX40 & MX60 should be plumbed with a 22mm main circuit with 15mm 'T' off to the radiators/
matrix heaters. It is very important to maintain good water flow through th e heat exchanger of the Mikuni heater due to their
compact size.
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