page no. 14 of 44
HEMNVx & HEMSL Range Users, Installation & Servicing Instructions Doc Ref M103 issue 3.6 Mar 2020.
Type B22 Installation
(these refer to section
2.2 of these instructions)
Air vents shall be permanently open.
In all cases figures are per heater installed.
For multi heater installations the appropriate values for
each heater must be added together
Type C12 or C32 Installation
(these refer to section 2.2 of
these instructions)
Air vents shall be permanently open.
Figures are for heaters in plant rooms or enclosures ONLY
In all cases figures are per heater installed.
For multi heater installations the appropriate values for each heater must be
added together.
Heat
Input
kW
In the heated
space
In a plant room, ventilation
to outside
Ventilation is to a room or
internal space
Ventilation is to a outside
air
Low level grille.
Free area cm²
Low level grille.
Free area cm²
High level grille.
Free area cm²
Low level grille.
Free area cm²
High level grille.
Free area cm²
Low level grille.
Free area cm²
High level grille.
Free area cm²
HEMNVx 10-3
10.3
20.6
41.2
20.6
103.0
103.0
51.5
51.5
HEMNVx 15-4
16.3
32.6
65.2
32.6
163.0
163.0
81.5
81.5
HEMNVx 18-5
19.8
39.6
79.2
39.6
198.0
198.0
99.0
99.0
HEMNVx 25-5
26.2
52.4
104.8
52.4
262.0
262.0
131.0
131.0
HEMNVx 30-6
30.5
61.0
122.0
61.0
305.0
305.0
152.5
152.5
HEMNVx 40-8
39.6
79.2
158.4
79.2
396.0
396.0
198.0
198.0
HEMNVx 50-6
49.7
99.4
198.8
99.4
497.0
497.0
248.5
248.5
HEMNVx 60-7
61.6
123.2
246.4
123.2
616.0
616.0
308.0
308.0
HEMNVx 75-9
76.6
153.2
306.4
153.2
766.0
766.0
383.0
383.0
HEMNVx 100-12
103.3
206.6
413.2
206.6
1033.0
1033.0
156.5
156.5
HEMNVx 110-13
109.9
219.8
439.6
219.8
1099.0
1099.0
549.5
549.5
HEMNVx 125-15
126.4
252.8
505.6
252.8
2528.0
2528.0
1264.0
1264.0
HEMNVx 150-18
153.9
307.8
615.6
307.8
n/a
HEMNVx 175-21
174.0
348.0
696.0
348.0
Type B22 Installation
(these refer to section
2.2 of these instructions)
Air vents shall be permanently open.
In all cases figures are per heater installed.
For multi heater installations the appropriate values for
each heater must be added together
Type C12 or C32 Installation
(these refer to section 2.2 of
these instructions)
Air vents shall be permanently open.
Figures are for heaters in plant rooms or enclosures ONLY
In all cases figures are per heater installed.
For multi heater installations the appropriate values for each heater must be
added together.
Heat
Input
kW
In the heated
space
In a plant room, ventilation
to outside
Ventilation is to a room or
internal space
Ventilation is to a outside
air
Low level grille.
Free area cm²
Low level grille.
Free area cm²
High level grille.
Free area cm²
Low level grille.
Free area cm²
High level grille.
Free area cm²
Low level grille.
Free area cm²
High level grille.
Free area cm²
HEMSL 30-6
31.7
63.4
126.8
63.4
317.0
317.0
158.5
158.5
HEMSL 45-9
45.0
90.0
180.0
90.0
450.0
450.0
225.0
225.0
HEMSL 50-6
50.0
100.0
200.0
100.0
500.0
500.0
250.0
250.0
HEMSL 60-12
61.6
123.2
246.4
123.2
616.0
616.0
308.0
308.0
HEMSL 75-9
77.0
154.0
308.0
154.0
770.0
770.0
385.0
385.0
HEMSL 75-15
78.0
156.0
312.0
156.0
780.0
780.0
390.0
390.0
HEMSL 90-18
90.6
181.2
362.4
181.2
906.0
906.0
453.0
453.0
HEMSL 100-12
97.5
195.0
390.0
195.0
975.0
975.0
487.5
487.5
HEMSL 125-15
130.0
260.0
520.0
260.0
1300.0
1300.0
650.0
650.0
HEMSL 150-18
153.2
306.4
612.8
306.4
n/a
HEMSL 175-21
183.6
367.2
734.4
367.2
HEMSL 200-24
206.1
412.2
824.4
412.2
HEM-NVx
HEM-SL