Requirements For The; Commonwealth Of Massachusetts; New York City Approval - Lennox Elite ELDV-35NM Installation Instructions Manual

These electronic models come standard with a
manually-modulated gas valve; flame appear-
ance and heat output can be controlled at the
gas valve. The BTU Input for these appliances
is shown in Table 2.
Input (BTU/HR) (all models)
Input Rate (BTU / HR)
Models
Natural Gas
27,000 high
ELDV35
21,000 low
29,000 high
ELDV40
23,000 low
30,000 high
ELDV45
23,000 low
*Electronic valves may be
Table 2
converted to propane.
Gas Pressure - All Models
Tables 3 and 4 show the appliances' inlet and
manifold gas pressure requirements:
Inlet Gas Supply Pressure
(all models)
Fuel # Minimum
4.5" WC
Natural Gas
(1.12 kPa)
11.0" WC
Propane
(2.74 kPa)
Table 3
Manifold Gas Supply Pressure
(all models)
Fuel # Low
Natural (Lo) 2.2" WC
Gas (0.55 kPa)
(Lo) 6.3" WC
Propane
(1.57 kPa)
Table 4
Test gauge connections are provided on the
front of the millivolt and electronic gas control
valve (identified IN for the inlet and OUT for the
manifold side). The control valves have a 3/8"
(10mm) NPT thread inlet and outlet side of the
valve (refer to Figures 1 and 2).
Propane tanks are at pressures that will cause
damage to valve components. Verify that the
tanks have step down regulators to reduce the
pressure to safe levels.
4
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).
These appliances and their individual shut-off
valves must be disconnected from the gas
supply piping system during any pressure
Propane Gas*
testing of that system at pressures greater
26,000 high
than 1/2 psig (3.5 kPa).
20,000 low
27,000 high
These appliances must not be connected to a
22,000 low
chimney or flue serving a separate solid fuel
28,000 high
burning appliance.
21,000 low
Orifice Sizes - Sea Level to High Altitude
(All Models)
These appliances are tested and approved for
installation at elevations of 0-4500 feet (0-1372
meters) above sea level using the standard burner
orifice sizes (marked with an "*" in Table 5).
For elevations above 4500 feet, contact your gas
supplier or qualified service technician .
Maximum
Deration - At higher elevations, the amount
10.5" WC
of BTU fuel value delivered must be reduced
(2.61 kPa)
by either:
• Using gas that has been derated by the gas
13.0" WC
company.
(3.23 kPa)
• By changing the burner orifice 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 CAN/CSA-B149.1 codes - latest
edition.
High
(Hi) 3.5" WC
Install the appliance according to the regulations
(0.87 kPa)
of the local authorities having jurisdiction and,
in the USA, the National Fuel Gas Code NFPA
(Hi) 10.0" WC
54 / ANSI Z223.1 - latest edition or, in Canada,
(2.49 kPa)
the CAN/CSA-B149.1 - latest edition.
Flame breadth, height and width will diminish
4% for every 1,000 feet of altitude.
Elevation 0-4500 feet ( 0-1372 meters)
Model
Series
ELDV35
ELDV40
ELDV45
Table 5
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Burner Orifice Sizes
Nat.Gas Propane
drill size (inches) drill size (inches)
#38 (0.1015")* #53 (0.0595")*
99K76• 39L10•
#37 (0.1040")* (0.062")*
24M10• 21L01•
#36 (0.1065")* #52 (0.0635")*
74L88• 80L41•
* Standard size installed at factory
• Part /Cat. Number
Gas Valve Diagrams
See Figure 1 for Millivolt models and Figure 2
For Electronic Models.
Pilot Adjustment
Main Gas Control Knob
OFF/PILOT/ON
IN OUT
Manifold Pressure Tap
Inlet Pressure Tap
Figure 1 -
SIT Millivolt Gas Valve
Supply Pressure-Tap Regulator
Gas (Manifold) Mounting Screw
Inlet
PILOT
HI
Pressure-Tap Ground
Pilot Gas
(Inlet) (TP)
Outlet
Figure 2 -
Dexen Electronic Gas Valve
REQUIREMENTS FOR THE COMMON-
WEALTH OF MASSACHUSETTS
These fireplaces are approved for installation in
the US state of Massachusetts if the following
additional requirements are met:
• Install this appliance in accordance with
Massachusetts Rules and Regulations 248
C.M.R.
• Installation and repair must be done by a
plumber or gas fitter licensed in the Com-
monwealth of Massachusetts.
• The flexible gas line connector used shall
not exceed 36 inches (92 centimeters) in
length.
• The individual manual shut-off must be a
T-handle type valve.
Massachusetts Horizontal Vent Requirements
In the Commonwealth of Massachusetts, hori-
zontal terminations installed less than seven
(7) feet above the finished grade must comply
with the following additional requirements:
Screw
HI/LO Variable
Flame Height
Adjustment
Burner Stage
Terminal
LO
Pilot Stage
Terminal