D301362 Issue 0 October 2021
Page 4 of 40
Flue Gas Properties Photon-P
This table replaces the flue gas properties given on page 16 of the Photon Installation
Manual
Photon Model
25-P
35-P
45-P
55-P
65-P
70-P
100-P
120-P
Flue Gas Temperature High Fire ΔT
°C
179.2
186.4
189.2
149.6
178.5
163.5
181.9
155.8
Flue Gas Temperature Low Fire ΔT
°C
86.2
87.8
88.0
62.2
89.2
79.3
77.8
73.9
Mass Flow Rate Flue Gases High
Fire G31
kg/h
30.03
35.39
47.37
49.87
63.02
84.97
113.90
134.78
Flue Pressure at Maximum Flue
Resistance
Pa
4
12
25
5
4
2
11
40
Gas Connection - Propane
This information replaces the information given on page 17 of the Photon Installation
Manual regarding Gas Types
PHOTON-P unit heaters are designed to operate on propane gas (G31). Check that the gas supply, gas category and gas
inlet pressure is in accordance with the information given on the unit data plate. To let the unit function at maximal heat
output, the gas supply pipe MUST be correctly sized.
Gas Supply Details – Propane Gas
This table replaces the gas supply details given on page 18 of the Photon Installation
Manual
Country
Gas
Category
Gas Type
Nominal
Supply
Pressure
(mbar)
Minimum
Supply
Pressure
(mbar)
Maximum
Supply
Pressure
(mbar)
CZ, DK, HU, MT, NL, RO
I
3P
(30)
Propane Gas (G31)
30
25
35
BE, CH, CZ, ES, FR, GB, GR, HR, IE, IT, LU, PL,
PT, SI, SK, TR
I
3P
(37)
Propane Gas (G31)
37
25
45
AT, BE, CH, CZ, DE, ES, FR, GB, GR, HU, NL,
SK
I
3P
(50)
Propane Gas (G31)
50
42.5
57.5
