SECTION 1 POTTERTON COMMERCIAL PRODUCTS DIVISION
INSTALLATION, OPERATION & MAINTENANCE MANUAL
PAGE 4
NXR3
CLEARANCES
The minimum boiler room clearances for access, erection and maintenance are given in Fig. 2 and Fig. 3, the
dimensions are minimum values. There is no minimum clearance above the boiler, however, it is recommended
that clearance is left above the top of the instrument panel to facilitate its removal. At the front of the boiler allow as
a minimum the A dimension, this is to allow access to the combustion chamber for maintenance and servicing. For
P dimension please refer to relevant burner card.
Fig. 2 – Boiler Clearances
Minimum Clearance(Front)
Nu-Way Oil
Nu-Way Gas
Riello Oil
Riello gas
EOGB Oil
EOGB Gas
Model
A (mm)
A (mm)
A (mm)
A (mm)
A (mm)
A (mm)
34
900
900
900
900
900
972
35
1070
1070
1070
1070
1070
1070
36
1240
1240
1240
1240
1240
1240
37
1410
1410
1410
1410
1410
1410
38
1580
1580
1580
1580
1580
1580
39
1750
1750
1750
1750
1750
1750
Fig. 3 – Boiler Footprint/Base Details
Flat Plate – 6 mm thick
(Not supplied by Potterton)
Boiler Size
C
L
34
750
900
35
920
1070
36
1090
1240
37
1260
1410
38
1430
1580
39
1600
1750
No special plinth is required for
this boiler, a simple dry base is
sufficient. Boiler footprint and
base clearance details are given
in Fig. 3.
Provision must be made to allow
free movement of the boiler on
its base.
600
500 min
P + 200
P
A
200
75
150
C
L
520
800
FRONT