Hunter H41, Operator'S Manual

Page: 128 / 206

Hunter 41 • Water Systems
9.6
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.
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
! !
IMPORTANT!
Water temperatures 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 supply
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 9.5.0. 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 9.5.0 - Temperatu T T re Adjustment
Table 1. Scald Time (Hot Water), References Only
Temperature Max duration until injury
155F (68.3C) 1 second
145F (62.9C) 3 seconds
135F (57.2C) 10 seconds
130F (54.4C) 30 seconds
125F (51.6C) 2 minutes
120F (48.8C) 5 minutes
WARNING
! !
Hydrogen gas may form in water heater if not used.
Open valves. Do not smoke or use electrical appli-
ances for several minutes before use.