Page No 8 of 52 Reznor, RHC21 8000 Installation EN May 2021 D301319 Issue 0
2 Technical Data
Model
RHC21
8045-09
8060-12
8075-09
8100-12
8125M15 8150M18 8175M21 8200M24
Combustion air & flue type Indoor
B
23
/ B
53
/ C
13
/ C
33
/ C
53
Combustion air & flue type External
Rooftop
Heat Input High Fire (Hs)
1
kW
56.00
74.60
91.50
120.00
153.50
183.00
207.00
240.00
Heat Input Low Fire (Hs)
1
kW
16.80
22.38
24.54
37.00
43.14
49.08
61.54
79.00
Heat Input High Fire (Hi)
2
kW
50.45
67.21
82.43
108.11
138.29
164.86
186.49
216.22
Heat Input Low Fire (Hi)
2
kW
15.14
20.16
22.11
33.33
38.86
44.22
55.44
71.17
Heat Output H2 High Fire
4
kW
45.68
61.29
75.77
101.23
128.17
153.18
174.98
201.95
Heat Output H2 Low Fire
4
kW
14.74
19.77
21.78
32.79
38.38
43.63
54.67
70.07
Gas Consumption High Fire
(Hs) G20
3
m³/h
5.33
7.10
8.71
11.43
14.62
17.42
19.71
22.85
Gas Consumption Low Fire
(Hs) G20
3
m³/h
1.60
2.13
2.34
3.52
4.12
4.67
5.86
7.52
Gas Consumption High Fire
(Hs) G25
3
m³/h
6.20
8.26
10.13
13.29
17.00
20.26
22.92
26.57
Gas Consumption Low Fire
(Hs) G25
3
m³/h
1.86
2.48
2.72
4.10
4.78
5.43
6.81
8.75
Gas Consumption High Fire
(Hs) G25.3
3
m³/h
6.07
8.08
9.91
13.00
16.63
19.83
22.43
26.00
Gas Consumption Low Fire
(Hs) G25.3
3
m³/h
1.82
2.43
2.66
4.01
4.67
5.32
6.67
8.56
Gas Service Connection
Inches BSP
3/4"
3/4"
3/4"
3/4"
11/4"
11/4"
11/4"
11/4"
Flue & Combustion Air
Connection Collars (Indoor)
Ø mm
130
130
130
130
130
130
180
180
Condensation Connection /
Outlet
Ø mm
22 O/D
Minimum V1 Airflow at 15°C
with Heat Output H1
6
m³/h
5650
7500
9300
12400
15600
18200
20100
23300
kW
TBC
TBC
TBC
TBC
TBC
TBC
TBC
TBC
Temperature Rise at V1 Airflow
K
TBC
TBC
TBC
TBC
TBC
TBC
TBC
TBC
Minimum V2 Airflow at 15°C
with Heat Output H2
7
m³/h
6600
8750
10790
14300
18000
21000
21500
24000
Temperature Rise at V2 Airflow
K
21
21
21
21
21
22
24
25
Electrical Connection
1 Phase
230V 1N ~ 50Hz
Total Electric Rating
kW
0.30
0.30
0.30
0.28
0.60
0.60
0.58
0.56
Approx Appliance Weight (net)
kg
87
120
110
145
200
230
265
305
Protection Grade
IP
20 (Indoor) / X4D (External)
Table 1 : Specifications
1
Refers to gross calorific value of fuel
2
Refers to net calorific value of fuel
3
Natural gas: G20 Hs 37.78 MJ/m³, G25 Hs 32.49 MJ/m³, G25.3 Hs 33.2 MJ/m³
4
Heat output depends on airflow - heat output H2 only for airflows above V2
5
H2 = heat output at airflow V2 (V2 = minimum airflow required for high heat output H2)
6
H1 = heat output at airflow V1 (V1 = minimum airflow required through enclosure)
