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R2K 24 - RAD - ING - Inst.Manual - 2002.1_CSA
1. INSTALLATION
INST
ALLER
1.1.21. TABLE 1: ALLOWABLE VENT LENGTHS
Vent
Configuration
Pipe Size
Minimum
Length
Vertical and
Horizontal
for Vent Run
Max
Equivalent
length Vertical
and Horizontal
for vent run
Gas Type
Exhaust Vent
Intake Vent
Co-axial vent
Ø2.3/3.9”
(Ø60/100
mm)
1 ft (0.3 m) +
elbow
32 ft (10 m) +
elbow*
Natural or
Propane
Polypropylene
Polypropylene
Co-linear vent
(2 Separate
pipes)****
2” (60 mm)
3.3 ft (1 m)
100 ft (30 m)**
Natural or
Propane
PVC, CPVC,
Polypropylene
PVC, CPVC,
Polypropylene, ABS
Co-linear vent
(2 Separate
pipes)****
3” (80 mm)
3.3 ft (1 m)
150 ft (46 m)
Natural or
Propane
PVC, CPVC,
Polypropylene
PVC, CPVC,
Polypropylene, ABS
Single vent
2” (60 mm)
1.6 ft (0.5 m)
36 ft (11 m)***
Natural or
Propane
PVC, CPVC,
Polypropylene
PVC, CPVC,
Polypropylene, ABS
Single vent
3” (80 mm)
1.6 ft (0.5 m)
100 ft (30 m)
Natural or
Propane
PVC, CPVC,
Polypropylene
PVC, CPVC,
Polypropylene, ABS
* The domestic fan maximum speed adjustment (P11) must be changed to a value of 198 Hz and the heating fan
maximum speed adjustment (P13) must be changed to a value of 183 Hz with a total vent run of above 10 ft (3 m).
** The domestic fan maximum speed adjustment (P11) must be changed to a value of 198 Hz and the heating fan
maximum speed adjustment (P13) must be changed to a value of 183 Hz with a total vent run of above 22 ft (7 m).
*** The domestic fan maximum speed adjustment (P11) must be changed to a value of 198 Hz and the heating fan
maximum speed adjustment (P13) must be changed to a value of 183 Hz with a total vent run of above 19 ft (6 m).
**** Vent run consists of allowable vent length for exhaust pipe and an additional allowable vent length for combustible
air.
NOTE: In Canada, exhaust vent must be approved to ULC S636 standard.
EQUIVALENT LENGTHS
Each 2”/ 3” (60 mm / 80 mm) 45° elbow equates to 2.5 linear feet to vent pipe.
Each 2”/ 3” (60 mm / 80 mm) 90° short radius elbow equates to 7.5 linear feet to vent pipe.
Each 2”/ 3” (60 mm / 80 mm) 90° long radius elbow equates to 5 linear feet to vent pipe.
Each Ø2.3/3.9” (Ø60/100 mm) co-axial 90° short radius elbow equates to 5 linear feet to vent pipe.
The total maximum equivalent vent pipe distance cannot exceed the maximum length listed for horizontal
and vertical venting distance. The maximum lengths are not including elbows unless otherwise stated.
Exceeding the maximum venting distances will cause the appliance to malfunction or cause an unsafe
condition.
INSTALLATION
