▶ Slowly open the front cover .
Open front cover
▶ Disconnect the wire from the HMI (display) .
▶ Lift the front cover to remove from the appliance.
▶ Install the appliance so that it hangs vertically.
Greentherm 9800 SE 160/199 | SEC 199
General rules to follow for safe operation
1. You must follow these instructions when you install your
heater. In the United States: The installation must conform
with local codes or, in the absence of local codes, the
National Fuel Gas Code ANSI Z223.1/NFPA 54.
In Canada: The Installation must conform with CSA
B149.(1,2) INSTALLATION CODES and /or local
2. Carefully plan where you install the heater. Correct
combustion air supply and vent pipe installation are very
important. If not installed correctly, fatal accidents can
occur, such as carbon monoxide poisoning or fire.
3. When the unit is installed indoors with DIRECT VENT
(exhaust vent and air intake connected to the outside) it is
permitted to be located in bathrooms, bedrooms and
occupied rooms that are normally kept closed. See chapter
4.6 (page 15). If the unit will be installed indoors and use
indoor combustion air (NON-DIRECT VENT), the place
where you install the heater must have enough ventilation.
The National Fuel Gas Codes do not allow NON-DIRECT
VENT gas fired water heater installations in bathrooms,
bedrooms or any occupied rooms normally kept closed.
See chapter 4.6 (page 15).
4. You must correctly vent your heater. See chapter 4.6 (page
15) on VENTING.
5. The appliance and its gas connection must be leak tested
before placing the appliance in operation.
The appliance must be isolated from the gas supply piping
system by closing its individual manual gas shutoff valve
(not supplied with heater) during any pressure testing at
pressures in excess of ½ Psig (3.5 kPa).
6. Keep the water heater area clear and free from
combustibles and flammable liquids. Do not locate the
heater over any material which might burn.
7. Correct gas pressure is critical for the proper operation of
this heater. Gas piping must be sized to provide the
required pressure at the maximum output of the heater,
while all the other gas appliances are in operation. Check
with your local gas supplier, and see the section on
connecting the gas supply. See chapter 4.8 (page 28).
8. Should overheating occur or the gas supply fail to shut off,
turn off the gas supply at the manual gas shut off valve, on
the gas line. Note: manual gas shutoff valve is not supplied
with the heater but must be field installed.
9. Do not use this appliance if any part has been underwater.
Immediately call the responsible party for the installation of
your appliance to inspect the appliance and to replace any
part of the water heater which has been underwater.
10. Failure to install the heater correctly may lead to unsafe
Appliance details | 11
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