Thermann Installer’s Manual
Gas Continuous Flow Water Heaters
12
Before installing, check for the following:
The location of the flue terminal must comply with the clearances shown on this page. If you are unsure
about clearances not indicated here, in general refer to AS/NZS 5601, or your local authority. In Western
Australia refer to the WA Office of Energy rules and regulations.
Flue outlet must be free from any combustible material.
WARNING
Direction of
discharge
See Note 1
See Note 1
Opening into
a building
T
T
T
T
T
T
C
M
d
d
e
e
h
j
j
j
n
b
f
a
h
P
Z
k
k
g
g
I
T
Door
I = Mechanical air inlet
M = Gas meter
P = Electricity meter or fuse box
T = Flue terminal
Z = Fan-assisted appliance only
Shading indicates prohibited
area for flue terminals
AS/NZS 5601.1:2013
FIGURE 6.2 (in part)
LOCATION OF FLUE TERMINALS OF BALANCED FLUE, ROOM-SEALED, FAN-ASSISTED OR OUTDOOR APPLIANCES
CLEARANCES FOR FLUE TERMINAL (front of heater)
* Unless appliance is certified for closer
installation.
† Prohibited area below electricity meter
or fuse box extends to ground level.
NOTES:
1 Where dimensions c, j or k cannot
be achieved an equivalent horizontal
distance measured diagonally from
the nearest discharge point of the
terminal to the opening may be
deemed by the Technical Regulator
to comply.
2 See Clause 6.9.4 for restrictions on a
flue terminal under a covered area.
3 See Figure J3 for clearances required
from a flue terminal to an LP Gas
cylinder. A flue terminal is considered
to be a source of ignition.
4 For appliances not addressed above
acceptance should be obtained from
the Technical Regulator.
5 Minimum clearances d and e also
apply to any combustion air intake
openings of appliances.
Ref.
Item
Minimum clearances
mm
Fan assisted
a Below eaves, balconies and other projections:
Appliances up to 50 MJ/h input
200
Appliances over 50 MJ/h input
300
b From the ground, above a balcony or other surface *
300
c From a return wall or external corner *
300
d From a gas meter (M) (see Note 5)
(see Clause 5.11.5.9 for vent terminal location of regulator)
(see Table 6.7 for New Zealand requirements)
1000
e From an electricity meter or fuse box (P) † (see Note 5)
500
f From a drain pipe or soil pipe
75
g Horizontally from any building structure * or obstruction facing a terminal
500
h From any other flue terminal , cowl, or combustion air intake *
300
j Horizontally from an openable window, door, non-mechanical air inlet, or any other opening into
a building with the exception of sub-floor ventilation:
Appliances up to 150 MJ/h input*
300
Appliances over 150 MJ/h input up to 200 MJ/h input*
300
Appliances over 200 MJ/h input up to 250 MJ/h input*
500
Appliances over 250 MJ/h input*
1500
All fan-assisted flue appliances, in the direction of discharge
1500
k From a mechanical air inlet, including a spa blower
1000
n Vertically below an openable window, non-mechanical air inlet, or any other opening into a
building with the exception of sub-floor ventilation:
Space heaters up to 50 MJ/h input
150
Other appliances up to 50 MJ/h input
500
Appliances over 50 MJ/h input and up to 150 MJ/h input
1000
Appliances over 150 MJ/h input
1500
4. Installation Clearances
Summary of Contents for TH17ENB5L
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