Reznor, Photon, Installation Manual, EN 2021-04, D301310 Iss 0 Page No 25 of 52
C
Model
Photon
10
20
25
35
45
55
65
70
100
120
CO2 at High Fire (Throttle) G20
%
8.70
8.70
8.70
8.70
8.70
8.70
8.70
8.70
8.70
8.70
CO G20
ppm
< 50 ppm
Throttle Turns from Closed
-
3.0 out 1.5 out 4.5 out 7.0 out 6.0 out 8.5 out 7.5 out 8.0 out 29.5 in 1.0 out
CO2 at Low Fire (Offset) G20
%
7.70
8.10
8.10
8.10
8.10
7.90
8.10
8.20
8.20
8.00
CO G20
ppm
< 50 ppm
Low Fire Offset Pressure G20
Pa
22
45
25
54
27
77
87
105
67
N/A
CO2 at High Fire (Throttle) G25
%
8.60
8.70
8.70
8.70
8.70
8.60
8.70
8.70
8.60
8.60
CO G25
ppm
< 50 ppm
Throttle Turns from G20
-
2.0 out 1.5 out 1.75 out 2.5 out
2.125
out
3.0 out 2.5 out 3.0 out
7.5 in
0.5 out
CO2 at Low Fire (Offset) G25
%
7.70
8.10
8.10
8.10
8.10
7.90
8.10
8.20
8.20
8.00
CO G25
ppm
< 50 ppm
Low Fire Offset Pressure G25
Pa
32
55
24
34
26
72
105
134
66
N/A
CO2 at High Fire (Throttle) G25.3
%
8.60
8.70
8.70
8.70
8.70
8.60
8.70
8.70
8.60
8.60
CO G25.3
ppm
< 50 ppm
Throttle Turns from G20
-
1.0 out 1.0 out 1.5 out 2.0 out 2.0 out 3.0 out 2.25 out 3.0 out
6.0 in
0.5 out
CO2 at Low Fire (Offset) G25.3
%
7.70
8.10
8.10
8.10
8.10
7.90
8.10
8.20
8.20
8.00
CO G25.3
ppm
< 50 ppm
Low Fire Offset Pressure G25.3
Pa
42
60
24
33
26
70
100
140
64
N/A
Flue Gas Temperature High Fire
Δ
T
°C
161.1
179.9
176.3
182.6
176.9
163.9
170.5
152.8
171.1
146.8
Flue Gas Temperature Low Fire
Δ
T
°C
65.0
71.1
78.7
68.2
74.7
72.8
76.9
75.8
72.1
61.0
Flue Pressure at Maximum Flue
Resistance
Pa
3
6
70
10
19
18
11
14
23
6
Thermal Efficiency High Fire NCV
%
91.9
90.7
90.9
90.6
90.9
91.6
91.2
92.0
91.3
92.6
Thermal Efficiency Low Fire NCV
%
96.4
96.1
95.7
96.2
95.9
95.8
95.8
95.8
96.1
96.7
Ignition Controller Program Key
Ω
1,000
2,200
3,300
4,700
6,800
10,000 15,000 22,000 33,000 56,000
Table 4 Nominal Combustion Values with service door closed
