Reznor ULSA 035(EC) - Page 15

1701ULSA(EC)--EN, p. 15/30
Figure8:ApprovedappliancestypeC
C12
wall

 C32
roof
C42
roof

 
C52
roof

 C82
roof




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7.4DIAMETER&MAXIMUMFLUEPIPELENGTHS
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Fluepipediametersandmaximumpipelengthsintable2applytobothhorizontalandverticalsystems.Addall
straightsectionsandequivalentlengthsforelbow.Thetotalcombinedlengthmustnotexceedthemaximumflue
length.
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Table2:
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IMPORTANT:OnlyuseMuelink&GroltypeSkyline3000forwallorroofterminalorequivalenttype

7.5AIRSUPPLY

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WARNING
WhentheseairheatersareinstalledastypeBappliances,theytaketheirairforcombustion
fromthespaceinwhichtheyareinstalled.Donotrestrictthecombustionairintake.

Itisimportanttoensurethatthereisanadequateairsupplyatalltimesforbothcombustionandheating
requirements.Modernbuildingsinvolvegreateruseofinsulation,improvedvapourbarriersandweatherproofing.
Thesepracticesmeanthatbuildingsaresealedmuchtighterthaninthepast.
Model ULSA/ULSA EC 025 035 050 075 100
Max. straight concentric length
for combustion air inlet pipe & flue outlet pipe
(1)
m flue/inlet pipe 15 15 15 15 15
Equivalent length of 45° concentric elbow m flue/inlet pipe 0,85 0,85 0,70 1,10 0,75
(1)
: ULSA(EC) 025,035, 050 : dia 80/125mm / ULSA(EC) 075,100 : dia 100/150mm
-use same diameter for all flue pipes
-recommened minimum flue = 1m
0,75
1,50 1,50
2,20 1,50
0,75 0,75 0,75 0,75
1,50 1,50
1,40
30 30 30 30
1,70 1,70
30
100 100
20 20 20 20 20
80 80
Equivalent length of 90° elbow
mm
m
m
m
80
1,50
m flue/inlet pipe
flue/inlet pipe
Equivalent length of 90° concentric elbow
Heater socket & pipe dia
Max. straight length1 pipe B23P (flue outlet
pipe)(w ith wall or roof terminal)
m
flue/inlet pipe
flue/inlet pipe
flue/inlet pipe
Max. straight length
2
pipes
(
combustion air inlet
pipe & flue outlet pipe)(w ith w all or roof terminal)
(C appliance)
Equivalent length of 45° elbow flue/inlet pipe