Lennox G61MPV User Manual

Page 70
TABLE 41
Conversion Kit Requirements
Input
High Altitude
Orifice Kit
Natural Gas
Only
High Altitude Pressure Switch Kit
ORDER TWO EACH
LPG/Propane Kit LPG/Propane to
Natural Gas Kit
7501−10,000 ft. 2000−4500 ft. 4501−7500 ft. 7501−10,000 ft. 0−7500 ft. 7501−10,000 ft. 0−7500 ft.
1
7501−10,000 ft.
−045 44W51 − − − − − − − − − 44W48 44W50 44W49 44W49 + 44W51
−070 44W51 − − − − − − 56M23 44W48 44W50 44W49 44W49 + 44W51
−071 44W51 75M22 75M22 56M21 44W48 44W50 44W49 44W49 + 44W51
−090 44W51 − − − 75M22 56M21 44W48 44W50 44W49 44W49 + 44W51
−091 47M82 26W85 26W85 26W86 44W48 44W50 44W49 44W49 + 47M82
−110 44W51 − − − 56M23 75M22 44W48 44W50 44W49 44W49 + 44W51
−111 47M82 56M22 56M22 56M23 44W48 44W50 44W49 44W49 + 47M82
−135 44W51 − − − 56M93 56M93 44W48 44W50 44W49 44W49 + 44W51
1
High Altitude Orifice Kit is required and must be ordered separately for applications from 7501 to 10,000 ft.
G− Proper Combustion
Furnace should operate minimum 15 minutes with correct
manifold pressure and gas flow rate before checking com-
bustion. See sections D− and E−. Take combustion sample
beyond the flue outlet and compare to the following tables.
The maximum carbon monoxide reading should not ex-
ceed 100 ppm.
TABLE 42
High Heat
Unit
CO
2
%
For Nat
CO
2
%
For L.P.
G61MPV−36B−045 6.0 − 7.0 6.9 − 7.9
G61MPV−36B−070 6.5 − 7.6 7.4 − 8.4
G61MPV−36B−071 6.9 − 8.2 8.3 − 9.8
G61MPV−36C−090 6.9 − 8.0 7.8 − 8.8
G61MPV−60C−090 6.7 − 7.7 7.8 − 8.8
G61MPV−60C−091 7.6 − 8.9 8.7 − 10.2
G61MPV−60C−110 7.2 − 8.2 8.1 − 9.1
G61MPV−60C−111 7.5 − 8.8 8.7 − 10.2
G61MPV−60D−135 7.4 − 8.5 8.3 − 9.3
TABLE 43
Low Heat
Unit
CO
2
%
For Nat
CO
2
%
For L.P.
G61MPV−36B−045 4.3 − 5.3 4.8 − 5.8
G61MPV−36B−070 4.8 − 5.8 5.3 − 6.3
G61MPV−36B−071 5.0 − 6.2 5.7 − 7.0
G61MPV−36C−090 5.1 − 6.5 5.9 − 6.9
G61MPV−60C−090 5.1 − 6.5 5.9 − 6.9
G61MPV−60C−091 5.4 − 6.7 6.2 − 7.4
G61MPV−60C−110 5.3 − 6.5 6.1 − 7.1
G61MPV−60C−111 5.3 − 6.5 6.1 − 7.4
G61MPV−60D−135 6.5 − 7.5 6.7 − 7.7
H− Condensate pH Range
The condensate is mildly acidic and can be measured with
pH indicators. The pH scale is a measurement of acidity
and alkalinity. The following scale shows the relative pH of
some common liquids as compared with condensate of
G61MPV units. The concentration of the acidity of all these
fluids including the condensate is very low and harmless.
pH RANGE
0
1
2
3
4
5
6
7
8
9
10
11
Vinegar
Wine
Orange Juice
Tomato Juice
Tap Water
G61 Condensate
pH Range
Increasing
Acidity
Increasing
Alkalinity

Lennox G61MPV Specifications

General

Brand	Lennox
Model	G61MPV
Category	Furnace
Language	English