Weil-McLain GV90+ Istruzioni per l'installazione e il funzionamento

Part number 550-100-154_0517

This addendum must only be used by a qualiﬁed heating installer/service technician. Read all instructions, including

the GV90+ Series 2 boiler manual and all other information shipped with the boiler, before installing. Perform steps in

the order given. Failure to comply could result in severe personal injury, death or substantial property damage.

Manual Addendum — Venting

Series 2

Gas-Fired Water Boilers

This Addendum needs to be used in conjunction with the GV90+ Series 2

Boiler Manual P/N 550-142-903_1016.

ATTENTION to installers and homeowners of GV90+ boilers.

KEEP THIS ADDENDUM WITH BOILER MANUAL

Polypropylene Vent Systems Approval

Part number 550-100-154_0517

GV90+ Series 2 gas-fired water boiler - Manual Addendum - Venting

REPLACES MANUAL PAGE 29

GV90+ Boilers must be vented and sup-

plied with combustion and ventilation air

using piping and methods described in

this manual.

Every boiler must have its own vent. DO

NOT common vent with any other appliance.

See page 16.

Inspect ﬁnished vent and air piping thor-

oughly to ensure all are airtight and comply

with the instructions provided and with all

requirements of applicable codes.

Failure to provide a properly-installed vent

and air system will cause severe personal

injury or death.

Venting/combustion air piping - Installations

must provide provisions for combustion and

ventilation air in accordance with the section

“Air for Combustion and Ventilation,” of

the National Fuel Gas Code - ANSI Z223.1/

NFPA54 – latest edition, or Sections 8.2, 8.3,

or 8.4 of Natural Gas and Propane Installa-

tion Code - CAN/CSA B149.1, or applicable

provisions of the local building codes.

Use only the materials listed in this manual

for vent and air pipe and ﬁttings. Failure to

comply could result in severe personal injury,

death or substantial property damage.

If used, a masonry chimney can ONLY be used

as a PIPE CHASE for vent and air pipes —

The vent and air piping must be installed as

instructed in this manual and all joints must

be sealed. The chimney must be used only

for GV90+ boilers. NO OTHER appliance or

ﬁreplace can be connected to the chimney.

The chimney must be straight, with no offsets,

and the vent and air piping materials must

comply with this instruction manual.

The chimney must be ﬁtted with a sealed ac-

cess opening, through which the interior of

the chimney can be inspected.

The chimney and liner must be inspected at

least once annually to verify condition.

Failure to comply could result in severe per-

sonal injury, death or substantial property

damage.

Venting & air piping — general

Part number 550-100-154_0517 3

GV90+ Series 2 gas-fired water boiler - Manual Addendum - Venting

REPLACES MANUAL PAGE 32

Venting & air — general (cont.)

GV90+ Model

Maximum vent and air pipe lengths

(Minimum length for all applications is 2 feet)

(All applications include allowance for the termination ﬁttings)

DIRECT VENT

(combustion air piped to boiler from outside)

DIRECT EXHAUST

(combustion air from inside)

SIDEWALL

termination VERTICAL

termination SIDEWALL

termination VERTICAL

termination

Weil-McLain

vent/air cap

3”

Separate pipes

3”

Concentric

[Note 1]

3”

Separate pipes

3”

Concentric

[Note 1]

3”

Coupling or

W-M Cap

3”

Coupling

See page 37 See page 39 See page 41 See page 43 See page 45 See page 51 See page 53

Max.

Length

(feet)

Max.

Length

(feet)

Max.

Length

(feet)

Max.

Length

(feet)

Max.

Length

(feet)

Max.

Length

(feet)

Max.

Length

(feet)

-3 100 100 100 100 100 100 100

-4 100 100 100 100 100 100 100

-5 100 100 100 100 100 100 100

-6 100 100 100 100 100 100 100

Equivalent feet for elbows — deduct from maximum equivalent length of piping (does not apply to termination ﬁttings)

PVC • 7 feet per for each 3-inch 90° long-radius or 45° elbow

• 16 feet for each 3-inch short-radius elbow

Centrotherm 3” = 6’ 4” = 20’ Duravent 3” = 17’ 4” = 22’

Note 1:

Use only PVC or Polypropylene pipe DO NOT use CPVC or ABS with concentric termination kits.

IPEX 3” PVC concentric vent kits can be used with standard PVC pipe, ttings and cement (ANSI/ASTM D1785) except where ULC

S636 compliance is required. For ULC S636 compliance, all pipe, ttings and cement must be IPEX System 636. When using IPEX

kits, use only IPEX product code 196006 for 3” venting.

Contact Weil-McLain for ordering information and availability of Weil-McLain venting kits.

Polypropylene - Separate pipe and concentric termination by respective manufacturers.

Figure 39 GV90+ Vent and air piping materials — OPTIONS and PIPING LIMITS

GV90+ Series 2 gas-fired water boiler - Manual Addendum - Venting

Part number 550-100-154_0517

REPLACES MANUAL PAGE 33

Figure 40 Vent and air piping materials — Use only the materials listed below, ensuring that all materials meet local codes

ALL vent and air pipes require a BIRD SCREEN at each termination. Most kits do not

include the bird screens. Purchase bird screens separately from Weil-McLain or vent

kit supplier if not included.

Item Material

Standards for installations in:

United States Canada

Plastic piping materials

Vent or air pipe

ﬁttings

PVC schedule 40 ANSI/ASTM D1785

Plastic vent pipe must be certiﬁed to

ULC S636 when required. (Note 2)

Air pipe can be any of those listed at

left if acceptable for local codes.

PVC-DWV (Note 1) ANSI/ASTM D2665

CPVC schedule 40 (Note 1) ANSI/ASTM F441

ABS-DWV schedule 40 (Note 1) ANSI/ASTM D2661

PVC & ABS pipe

cement & primer

PVC ANSI/ASTM D2564 & F656

CPVC (Note 1) ANSI/ASTM F493

ABS (Note 1) ANSI/ASTM D2235

Polypropylene

vent pipe, ttings,

terminations and

cement

Simpson-Duravent — Obtain all materials from

M&G Simpson-Duravent (3" Appliance adapter part

#3PPS-03PVCM-3PPF)

Centrotherm Eco Systems InnoFlue®

Single-wall — Obtain all materials from

Centrotherm (3" Appliance adapter part #ISAAL0303)

See manufacturer’s literature for detailed

information

MUST USE LOCKING COLLAR

ON EVERY JOINT

ULC S636

AL29-4C piping materials

Vent pipe

AL29-4C

stainless

steel

Heat Fab, Inc. — Saf-T-Vent®

Z-Flex, Inc. — Z-Vent II

Dura-Vent — FasNSeal™

Metal-Fab, Inc. — CORR/GUARD

Certiﬁed for Category IV and direct vent

appliance venting —

Weil-McLain bird screens (purchase separately)

Weil-McLain

bird screens

3” vent screen:

W-M part number 383-500-105

Note 1: DO NOT use DWV, CPVC or ABS when using concentric vent termination. Use ONLY PVC schedule 40.

Note 2: IPEX PVC concentric terminations utilize PVC pipe/ﬁttings certiﬁed to ULC S636. Where ULC S636 compliance is required, use

only IPEX System 636 pipe, ﬁttings and cement.

AL29-4C vent piping — Install a PVC-to-stainless adapter supplied by the vent pipe manufacturer at the boiler vent connection

and at the termination (when using Weil-McLain plate or concentric PVC termination). DO NOT mix piping from different vent

pipe manufacturers unless using adapters speciﬁcally designed for the purpose by the manufacturer.

Plastic piping — Do not attempt to connect different types of plastic piping together.

DO NOT use cellular core pipe.

Venting & air piping— options

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