INSTOMAX
TM
Integrated instantaneous water heater installation, use and care manual
(Revision Sept 2013)
,
Page
10.
exchanger containing potable water must be
filled.
Make sure that the heat exchanger drain cock is
turn off.
Open the nearest domestic hot water tap as well
as any control valve on the water heater outlet
(the copper tube at top the water heater).
The cold water supply to the unit shall be Open.
Close the domestic hot water tap as soon as
water flows out of it. Fix any leaks
Open every other hot water domestic hot water
paps in succession, in order to evacuate aire
from the distribution system.
4.4
TANK
THERMAL
MASS
FLUID
(WATER)
AQUASTAT
TEMPERATURE
SETTING
Consider safety and energy saving while setting
the water heater tank temperature aquastat(s). It
is more energy efficient to set the tank
temperature as low as possible. But lowering the
temperature results in less storage of energy to
provide domestic hot water heater.
A minimum of 70°C (160°F) tank temperature
is recommended as a starting point to insure
a good supply of domestic hot water.
To adjust the temperature set point of the
aquastat turn the knob until the required value of
the desired temperature is aligned with the
reference point.
In usage, it may be found that the set tank
temperature needs to be increase in order to
supply all the domestic water needs. The tank set
temperature may be raised up to a maximum of
88°C (190°).
If the unit has two aquastats, set one of them
approximately 2C (5F) lower then the other one.
4.5 START UP PROCEDURE
1. Fill tank and heat exchanger as described in
sections 4.2 and 4.3.
2. Adjust temperature levels as described in
section 4.4
3. Turn ON the water heater electric breaker.
4. The water heater main contactor should
close with an audible snap sound, and all
elements should turn on, along with their
indicator light.
5. Tank temperature should gradually increase.
Time required for the INSTOMAX™ to reach
the tank water temperature set point vary
from 1 to 4 hours according to the water
heater power input.
6. Once the temperature set point is reach,
heating elements and their indicator light will
turn off.
4.6 THERMOSTATICALLY CONTROLLED
MIXING VALVE SETTING
A thermostatically controlled
mixing
valve
automatically regulates the mix of very hot and
cold water as required to provide safe domestic
hot water under variable conditions.
To adjust the mixing valve setting, carefully open
a hot water tap. Protect yourself against the
scalding. Measure the hot water temperature with
a thermometer. Mixing valve adjustment is
achieved by turning the mixing valve knob
clockwise to reduce the domestic water
temperature,
contraclockwise
to
raise
the
domestic water temperature,
Unless local regulation requires otherwise, a
50°C (120°F) is considered the best temperature
to reduce heat loss through the plumbing and
prevent scalding for young kid and senior citizen.
Generally residential dishwasher are provided
with their own water heating element and don’t
required hotter water.
Raising
the
domestic
hot
water
outlet
temperature will not provide more domestic hot
water. In order to provide more domestic hot
water, the amount of energy in the water heater
tank need to be increase, this is achieved by
increasing the water tank temperature (maximum
88°C /190°).
Reference point
