Installation Guide

1312
- Start the gas supply. Check again for gas leaks using soapy water and correct as
necessary.
- Open the hot water faucet. You should hear the ignition clicking, and hot water
should begin flowing. Sometimes, if there is air in either the water or gas supply
lines, you will not get immediate combustion. If this is the case, turn the water on
and off several times to clear the water and gas lines of any air pockets that may be
present.
- All water heaters have a seasonal summer/winter switch to meet your water
temperature needs. This is because extra heating may be required when incoming
water temperatures are lower (winter), and less heating is required when incoming
water temperatures are higher (summer). Use the summer setting when incoming
water temperatures are a little higher. Use the winter setting when incoming water
temperatures are a little lower.
- When the water supply is turned off, the water heater will stop working. When you
turn the water back on, the water heater will reignite. Please note that if you use the
hot water multiple times in quick succession, the water may be excessively hot for
one or two seconds. Please wait for the temperature to adjust before using.
- If you close the water inlet valve or the water outlet valve, the water heater will shut
off immediately. Shut off the gas supply after use.
1. If a gas leak is detected at any time, close the main gas valve immediately. The
Marey service center or your local gas company should be contacted for repair.
2. Before going to sleep or leaving the house, the gas supply should be shut off.
3. Do not block the exhaust pipe or the air inlet. This can cause incomplete
combustion and lead to gas poisoning.
4. During operation, check the fire through the sight glass for normal combustion.
Check for a compact, blue flame. Tall or excessively orange flames indicate
abnormal combustion. If there is abnormal combustion, close the gas valve
immediately and contact the Marey service center or your gas company for
maintenance.
5. When outdoor temperatures are below 32 degrees F and pipe freezing may
occur, any water remaining in the unit after use should be discharged to avoid
freezing. Water should be discharged in the following manner:
a) Turn off the gas supply valve, turn off the tap water supply valve, and turn the
water temperature adjusting switch to the low temperature position. Turn on the
hot water supply valve and remove the water discharge valve to discharge the
water remaining in the unit. Reinstall the water discharge valve.
Check the gas pipes, hoses, and vent pipes regularly. If you find joints that are not
tightly secured or if there are cracks or corrosion anywhere, you should stop using
the heater and perform the necessary maintenance immediately.
Check regularly for water or gas leaks and correct immediately.
Regularly clean the surface of the water heater to remove dirt or dust with a wet
cloth, and then use a dry cloth to remove moisture. For hard to remove dirt, please
use a mild spray cleaner or detergent.
Do NOT use strong detergents, benzene, gasoline, or other flammable agents to
clean the unit.
Regularly remove and wash the stainless steel filter in the cold water inlet.
During operation, take note of the flame and discontinue use if abnormal
combustion is detected.
Avoid accidents. DO NOT modify this unit in any way.
Specification
Instruction
Sighting Window
Winter/Summer knob
Gas controlling knob
Water controlling knob
Gas controlling knob
Water controlling knob
(D). Water heater type D
(Drawing 1)
Specification
Instruction
Sighting Window
Winter/Summer knob
Drawing 06