WhisperGen PPS16-12MD, User Manual

Page: 53 / 84

Maintenance
Checking the Coolant
45
Checking the Coolant
Overview
Check the coolant level regularly to ensure a constant circulation of coolant
through the WhisperGen
TM
. How often the coolant needs to be checked and
replenished depends on the size of the coolant header tank and the coolant
circuit.
Use clean distilled water and high quality marine-grade corrosion inhibitor,
suitable for use with aluminium and any other metals that may be
encountered in the system (i.e. steel, copper).
If freezing conditions are expected, a marine-grade anti-freeze and
corrosion inhibitor is to be used. All additives must be pre-mixed. Follow the
dilution recommendation of the manufacturer.
The cooling system of the WhisperGen
TM
is vital to its
performance. If the coolant level is not maintained correctly, damage may
occur.
Glycol can be harmful if swallowed or inhaled. Do not store it in
open or unlabelled containers. Wash your hands thoroughly after handling it.
Using an incorrect type of coolant can cause serious corrosion in
the WhisperGen
TM
- use only the recommended coolant.
Ensure that the coolant is free of particulate contaminants.
Foreign particles in the coolant can obstruct coolant passages in the engine,
resulting in damage to the WhisperGen
TM
.
Do not connect the boat's main engine cooling system to the
same circuit as the WhisperGen
TM
, as cast iron contaminants may damage
critical internal components.
If the coolant system is used to heat the vessel potable water
system, a compatible non-toxic corrosion inhibitor (and anti-freeze if
required) must be used.
Procedure
To check the coolant level:
1. Remove the coolant header tank cap.
The WhisperGen
TM
coolant header tank is typically located
outside and above the WhisperGen
TM
.
2. Ensure that the coolant level is adequate. The coolant level must be
between the maximum (1) and minimum (2) levels at all times.
1
2
3. Replenish coolant if necessary. Use a high quality marine-grade
corrosion-inhibited anti-freeze that is designed for aluminium engines.
Follow the dilution recommendations of the manufacturer.
4. Replace the coolant header tank cap.