Maytag DIRECT VENT MERIT LMDV-35 SERIES Manuel D’Utilisation

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NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
Burner Orifi ce Sizes 
Elevation 0-4500 feet ( 0-1372 meters)
Model
Series
Natural
Gas
drill size 
(inches)
Propane
Gas
drill size (inches)
LMDVT-3328
LMDVR-3328
#45 (.082") 
*
39L6601 •
(.048") 
*
99K78 •
LMDV-3530
#44 (.086") 
*
60J8001 •
#55 (.052") 
*
19L5201 •
LMDV-4035
#37 (.104") 
*
24M1001 •
1/16" (.0625")
*
21L0101 •
* Standard size installed at factory
•  Part /Cat. Number
Table 7
Inlet Gas Supply Pressure 
(all models)
Fuel #
Minimum
Maximum
Natural Gas
5.0" WC
(1.24 kPa)
10.5" WC
(2.61 kPa)
Propane
11.0" WC
(2.74 kPa)
13.0" WC
(3.23 kPa)
Table 4
Burn-in Period
During the fi rst few fi res of this appliance there 
will be some odor due to the curing of the 
paint and burning off of lubricants used in the 
manufacturing process. 
Depending on your use, the burn-in period may 
take a few hours or a few days.  
KEEP YOUR HOUSE WELL VENTILATED 
DURING THE CURING PROCESS.  THE ODOR 
AND HAZE EMITTED DURING THE CURING 
PROCESS CAN BE QUITE NOTICEABLE AND 
MAY SET OFF A SMOKE DETECTOR.
If an optional blower is installed, Do not turn it 
on during the Burn-In period. 
A white fi lm may develop on the glass front 
during the fi rst few fi res as part of the curing 
process.  The glass should be kept clean during 
the fi rst two weeks of use to prevent the fi lm from 
baking on (making it very diffi cult to remove).  
See Cleaning Glass on Page 6.
       WARNING 
Failure to comply with the instal-
lation and operating instructions 
provided in this document will 
result in an improperly installed 
and operating appliance, voiding 
its warranty.  Any change to this 
appliance and/or its operating 
controls is dangerous.  Improper 
installation or use of this appli-
ance can cause serious injury or 
death from fi re, burns, explosion 
or carbon monoxide poisoning
.
       WARNING 
Do not use these appliances if 
any part has been under water.  
Immediately call a qualifi ed, 
professional service technician 
to inspect the appliances and to 
replace any parts of the control 
system and any gas controls 
which have been under water.
          IMPORTANT
These appliances must not be 
connected to a chimney or fl ue 
serving a separate solid fuel 
burning appliance. 
       WARNING 
Do not attempt to alter or modify 
the construction of the appli-
ance or its components. Any 
modifi cation or alteration may 
void the warranty, certifi cation 
and listings of this unit.
These appliances and their individual shut-off 
valves  must be disconnected from the gas 
supply piping system during any pressure 
testing of that system at pressures greater 
than
 1/2 psig (3.5 kPa).
These appliances must be isolated from the 
gas supply piping system (by closing their 
individual manual shut-off valve
) during any 
pressure testing of the gas supply piping 
system at test pressures equal to or less than 
1/2 psig (3.5 kPa).
At the time of installation, it must be determined 
if the appliance needs to be derated. Contact 
your local gas supplier for deration requirements 
for your area.
Deration - At higher elevations, the amount of 
BTU fuel value delivered must be reduced by 
either using gas that has been derated by the gas 
company or by changing the burner orifi ce to a 
smaller size as regulated by the local authorities 
having jurisdiction and by the (USA) National 
Fuel Gas Code NFPA 54 / ANSI Z223.1 - latest 
edition or, in Canada, the CAN1-B149.1 and .2 
codes - latest edition. 
Gas Pressure - 
Tables 4, 5 and 6 show the appliances' gas 
pressure requirements.
Manifold Gas Supply Pressure
(millivolt models)
Fuel #
Low
High
Natural 
Gas
(Lo) 2.2" WC
(.55 kPa)
(Hi) 3.5" WC
(.87 kPa)
Propane
(Lo) 6.3" WC
(1.57 kPa)
(Hi) 10.0" WC
(2.49 kPa)
Table 5
Manifold Gas Supply Pressure 
(electronic models)
Fuel #
Fixed
Natural Gas
3.5" WC
(.87 kPa)
Propane
10.0" WC
(2.49 kPa)
Table 6
Test gauge connections are provided on the 
front of the millivolt gas control valve, identifi ed 
IN for the inlet and OUT for the manifold side 
(see Figures 4 or 5 on Page 5 ).  A 1/8" NPT 
Test gauge connection is provided at the inlet 
and outlet (manifold) ports on the electronic gas 
control valve (see Figure 3 on Page 5 ).
Orifi ce Sizes -  Sea Level to High Altitude
(All Models): 
These appliances are tested and 
approved for installations at elevations of 0-4500 
feet (0-1372 meters) above sea level using the 
standard burner orifice sizes (marked with an 
"*" in Table 7 ).  
     
WARNING
If the information in this 
manual is not followed 
exactly, a  fi re or explosion 
may result causing prop-
erty damage, personal 
injury or loss of life.
       WARNING 
Improper installation, adjust-
ment, alteration, service or 
maintenance can cause injury 
or property damage.  Refer to 
this manual.  For assistance or 
additional information consult 
a qualifi ed installer, service 
agency or the gas supplier.