Conversion Kit Requirements And Manifold Pressures - Lennox G61MPV Service Manual

Conversion Kit Requirements and Manifold Pressures for Models
Model
Gas
Input Size
Required
Conversion
Kit
Nat N/A
−045
LPG 59M13
Nat N/A
−070
LPG 59M13
Nat N/A
−090
LPG 59M13
36C−090−9 Nat N/A
and later
models LPG 59M13
Nat N/A
−110
LPG 59M13
Nat N/A
−110−6
and later
LPG 59M13
Nat N/A
−135
LPG 59M13
Pressure switch is factory set. No adjustment necessary. All models use the factory installed pressure switch from 0−4500 feet (0−1370 m).
1 Oder two pressure switches for conversion
0 − 2000 ft.
(0 − 610 m)
Input
Re-
Gas
Size
quired Pres-
Con- sure
ver-
Switch
sion *
Kit
No
Nat N/A change
−071
LPG 59M13
No
change
No
Nat N/A
change
−091
LPG 59M13 No
change
No
Nat N/A change
−111
LPG 59M13 No
change
NOTE − Pressure switch is factory set. No adjustment necessary.
*Two pressure switch assemblies required per unit.
−045, −070, −090, −110 and −135
0−4500 ft.
(0−1372 m)
Required
Pressure
Conversion
Switch
Kit
No Change N/A
No Change 59M13
No Change N/A
No Change 59M13
No Change N/A
No Change 59M13
No Change N/A
No Change 59M13
No Change N/A
No Change 59M13
No Change N/A
No Change 59M13
No Change N/A
No Change 59M13
Conversion Kit Requirements for Models −071, −091 and −111
2001 − 4500 ft. 4501 − 5500 ft.
(611 − 1372 m) (1373 − 1676 m)
Re- Re-
quired Pres- quired
Con- sure Con-
ver- ver-
Switch
sion * sion
Kit Kit
N/A 75M22 N/A
59M13 75M22 59M13
N/A 26W85 N/A
59M13 26W85 59M13
N/A 56M22 N/A
59M13 56M22 59M13
TABLE 40
Altitude
4501−7500 ft.
(1373−2286 m)
Required
1
Pressure
Conversion
Switch
Kit
No Change 59M17
No Change 59M14
No Change 59M17
No Change 59M14
75M22 59M17
75M22 59M14
24W51 59M17
24W51 59M14
56M23 59M17
56M23 59M14
56M23 59M17
56M23 59M14
56M93 59M17
56M93 59M14
TABLE 41
Altitude
5501 − 6500 ft.
(1677−1981 m)
Re-
Pres- quired Pres-
sure Con- sure
ver-
Switch Switch
* sion *
Kit
75M22 N/A 75M22
75M22 59M13 75M22
26W85 N/A 26W85
26W85 59M13 26W85
56M22 N/A 56M22
56M22 59M13 56M22
Page 65
Manifold Pressure at
7501−10,000
Low Fire
(2287−3048 m)
1
Pressure in.
Switch w.g.
No Change 1.7
No Change 4.9
56M23 1.7
56M23 4.9
56M21 1.7
56M21 4.9
24W49 1.7
24W49 4.9
56M23 1.7
56M23 4.9
75M22 1.7
75M22 4.9
56M93 1.7
56M93 4.9
6501 − 7500 ft. 7501 − 10,000
(1982 − 2286 m) (2287 − 3048 m)
Re- Re-
quired Pres- quired
Con- sure Con-
ver- ver-
Switch
sion * sion
Kit Kit
N/A 75M22 59M17
59M13 75M22 59M14
N/A 26W85 47M82
59M13 26W85 59M14
N/A 56M22 47M82
59M13 56M22 59M14
all
altitudes
High Fire
in.
kPa kPa
w.g.
0.42 3.5 0.87
1.22 10.0 2.5
0.42 3.5 0.87
1.22 10.0 2.5
0.42 3.5 0.87
1.22 10.0 2.5
0.42 3.5 0.87
1.22 10.0 2.5
0.42 3.5 0.87
1.22 10.0 2.5
0.42 3.5 0.87
1.22 10.0 2.5
0.42 3.5 0.87
1.22 10.0 2.5
Re-
Pres-
place-
sure
ment
Switch
Orifice
*
Size
56M21 0.086
56M21 0.052
26W86 0.081
26W86 0.052
56M23 0.081
56M23 0.052