Lochinvar SNR150-100 Manuel D’Utilisation

       

Installation & Service Manual

TM

1.  Installations must be made with a vent pipe system 
 

certified to ULC-S636.

2.  The first three (3) feet of plastic vent pipe from the 
 

appliance flue outlet must be readily accessible for visual 

 inspection.
3.  The components of the certified vent system must not be 
 

interchanged with other vent systems or unlisted 

 

pipe/fittings.  For concentric vent installations, the inner 

 

vent tube must be replaced with field supplied certified vent 

 

material to comply with this requirement.

4.  The 3" Concentric Vent Kit available from Lochinvar (see 
 

Section 3 – Sidewall Termination – Optional Concentric 

 Vent) and the 3" Concentric Vent Kit available from IPEX 
 

are both approved for use on the Shield water heater.  Both 

 

kits are listed to the ULC-S636 standard for use in Canada.

Combustion Air = 12 equivalent feet minimum / 100 
equivalent feet maximum

Vent = 12 equivalent feet minimum / 100 equivalent feet 
maximum

When determining equivalent combustion air and vent 
length, add 5 feet for each 90° elbow and 3 feet for each 45° 
elbow. 

EXAMPLE:  20 feet of PVC pipe + (4) 90° elbows + (2) 45° 
elbows + (1) concentric vent kit (CVK3003) = 49 equivalent 
feet of piping.

The appliance output rating will reduce 
by up to 1.5% for each 25 feet of vent 
length.

The Shield water heater uses model specific combustion air 
intake and vent piping sizes as detailed in Table 2A below.

SNR150-100 -- SNR200-100

3 inches

3 inches

SNA285-125 -- SNA500-125

4 inches

4 inches

SNR150-100 -- SNR200-100 CVK3003

3 feet

SNA285-125

CVK3007

3 feet

SNA400-125

CVK3007

5 feet

SNA500-125

CVK3007

30 feet

Increasing or decreasing combustion air 
or vent piping sizes is not authorized.