Hunter Marine H36, Operator'S Manual

Page: 127 / 224

Hunter 36 • Water Systems
9.5
Follow these procedures when using the water heater:
1. Make sure the water heater is full of water. Open a
hot water faucet and allow a steady stream of water to
flow out of the faucet to remove all air from the hot water
circuit.
2. With the generator running or shore power connected
to your boat, switch on the WATER HEATER circuit
breaker at the AC side of the MDP.
3. Wait for the water in the tank to heat up, then use as
you would at home.
WARNING
! !
ratures in excess 110ºF (43ºC) are dangerous and
may cause scalding, severe injury or death
9.4.6.1 Water Heater Temperature Adjustment
( Thermostatic Mixing Valve)
1. Let the water flow for at least 2 minutes to allow sup-
ply
temperature to stablize.
2. Calibrate the mixed water outlet temperature by plac-
ing
a thermometer in the mixed water stream.
3. To adjust the setting of the valve, loosen locking cap
with hex wrench, see figure 9.5. Cap must be lifted 1/4”
to adjust temperature. To increase the temperature, turn
counterclockwise. To decrease temperature, turn clock-
wise
4. Lower handle and tighten screw.
5. Check outlet temperature.
NOTE: Refer to User’s manual in OEM Packet.
Hotter
3
/
32
" Hex Wrench
Tu TT rn
Colder
Unscrew, w lift
cap to adjust
Figure 9.5 - Temperatu T T re Adjustment
Table 1. Scald Time (Hot Water), References Only
aft of the generator. Raw water is taken in via the raw
water intake and then passes through the strainer and is
discharged through the exhaust of the generator. Consult
the DC Electric Chapter (Chapter 7) of this manual for
more information about your generator option.
9.4.5 Engine Seacocks and Strainers
It is a very important function for your main engines to
remain a specific temperature when operating. This is
done with the aid of raw water from the main engine
seacocks. Heat from the closed cooling system on the
engines is transferred to the cooler seawater through
heat exchangers inside the engine. The raw water is then
discharged through the exhaust.
To clean your main engine strainer, first close the main
engine seacock, remove the top cover on the strainer
remove the screen and clean.
CAUTION
! !
Always ensure engine, or generator seacocks, or
intakes are open before starting. Failure to do so
could overheat and a damage these components.
Before re-installing the cap onto the strainer, check the
‘o’ ring that is the seal on the cap. Check for wear, or
leakage. Replace if needed (Contact your dealer for
replacement).
WARNING
! !
Hot coolant under pressure may boil or explode and
cause burns or other personal injury when the pres-
sure cap is removed. Allow the engine to cool, then
open the cap slowly to allow any pressure to vent
before completely removing the cap.
CAUTION
! !
Before using any system that requires raw cooling
water, ensure that the intake valve is opened and the
strainers are not clogged. Section 9.4.6 illustrates
the procedure for cleaning your strainers.
9.4.6 Water Heater
The fresh water pump supplies water to the water heater
from the water tanks. A breaker on the AC side of the
MDP, and a rocker switch on the control panel controls
power to the heater.