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P a g e
F. User operation of the GSWH-1M
Since an RV’s environment and water source (temperature, flow/pressure) can
change on a daily basis and the Girard GSWH-1M Tankless Water Heater needs to
make “instant” Hot water based on these changes, Girard Products has designed
the Girard GSWH-1M Tankless Water Heater with multiple operation controls and
settings so the end user can achieve the desired Hot water temperature in nearly any
environment.
This is accomplished by: (a) adjusting the Gas Modulating Control Dial (GMC), (b) by
adjusting the Hot water flow and/or (c) by adding Cold Water to the Hot Water flow.
We suggest, before going on their first camping trip, the end user try the different
operating procedures (at every faucet) to acheive the desired Hot water temperature.
OPERATING PROCEDURES:
1.
Purge the air out of all Cold and Hot Water Lines (don’t forget any outside faucets, toilet and
washer hook-ups). This only needs to be done on the first time out camping (unless a water
line is depleted of water).
2.
Open Water Heater Door and turn the Water Heater Power switch to the ON position. The
Power Switch can be left in the ON position for the entire camping season since it will only
draw power when there is a demand for Hot water.
3.
Locate and set Gas Modulator Dial (GMC) to the appropriate setting (see fig.5 on page 8).
a.
Normal Weather – Set Dial to the middle area.
b
. Extreme Cold Weather – Set Dial to the extreme right area (large flame).
c
. Extreme Hot Weather – Set dial to the extreme left area (small flame).
4.
Turn on the Hot water faucet to a normal flow rate (normal would be ½ to 2/3 flow rate). Wait
for the water to travel from the Water Heater to the faucet (this may be a few seconds to
nearly a minute, depending on the RVs plumbing configuration and location of the faucet and
the Water Heater).
5
. If the Hot water is not Hot enough you may do the following:
a.
Turn the Gas Modulating Dial “clockwise” to increase the flame/BTUs to raise the
Hot Water Temperature. NOTE: Use caution not to increase the Dial too much which
could cause the Hot Water temperature to rise to the point the Water Heater “limits”
and turns OFF the flame (flame shut off is approximately 131 degrees F).
b.
Reduce the Hot water flow to increase the Hot water temperature
6.
If the Hot Water is too Hot you may decrease the Hot water temperature by:
a.
Turn the Gas Modulator Dial counter-clockwise to decrease the flame/BTUs.
b.
Increasing the Hot Water flow.
c.
Gradually
add Cold water.
NOTE: Adding Cold water to may cause the Water Heater to “limit” if the Hot Water temperature
approaches the 131 degree (F) range which may happen if the Hot water flow decreases to
below 1 Gallon per Minute (GPM).