WEIL-MCLAIN 110-399 Condensing Gas Boilers Instructions

: June 1, 2024
: Weil-McLain

Table of Contents

WEIL-MCLAIN 110-399 Condensing Gas Boilers
Product Information
Product Usage Instructions
Frequently Asked Questions
Venting & air — general
Documents / Resources
- Read User Manual Online (PDF format)
- Download This Manual (PDF format)

WEIL-MCLAIN 110-399 Condensing Gas Boilers

WEIL-MCLAIN-110-399-Condensing-Gas-Boilers-product

Product Information

Specifications

Model: 110-399 Condensing Gas Boilers
Part Number: 550-100-585/0324
Venting & Air Pipe Length: Maximum 100 feet, Minimum 2 feet
Vent and Air Pipe Sizes: 3 inches
Materials: PVC, PVC-DWV, CPVC, PP, SS
Termination Kit: ICWS3513 (for model 155)

Product Usage Instructions

Installation

Read the Boiler Manual and this Addendum thoroughly before installation.
Ensure all instructions provided with the boiler are followed in the correct order.
Only use the approved vent/air pipe terminations and materials listed in the manual.
For applications with polypropylene piping, use only the manufacturers’ parts listed.
Maximum vent and air pipe length should not exceed 100 feet.

Venting & Air Pipe Sizes

Use 3-inch PVC or PP Concentric pipes for sidewall and vertical terminations.

Elbows

Use sweep elbows only in the vent and air piping.
Avoid short-radius elbows to prevent issues.

Derating

Boilers will derate as vent/air pipe length increases; refer to Figure 118 for derate amounts.

Frequently Asked Questions

Q: Can I use short-radius elbows in vent and air piping?

A: No, only sweep elbows should be used to avoid potential problems.

Q: What is the maximum vent and air pipe length allowed?

A: The maximum length is 100 feet for all applications, with a minimum length of 2 feet.

Q: What materials are recommended for vent and air pipe sizes?

A: Recommended materials include PVC, PVC-DWV, CPVC, PP, and SS in 3-inch sizes.

Manual Addendum

EVG 110, 155 Boiler Manual P/N 550-100-210
EVG 220, 299, 300, & 399 Boiler Manual P/N 550-100-211
This Addendum must be used in conjunction with the Boiler Manual provided with your product.
ATTENTION to installers and homeowners of Weil-McLain boilers
KEEP THIS ADDENDUM WITH BOILER MANUAL
Changes to Equivalent Length for Polypropylene (PP) Elbow Fittings
for changes to the “Equivalent length for elbows” section on the P/N 550-100-210 Evergreen 110/155 Boiler Manual
for changes to the “Equivalent length for elbows” section on the P/N 550-100-211 Evergreen 220/299/300/399 Boiler Manual
WARNING This addendum must only be used by a qualified heating installer/service technician. Read all instructions, including the 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.

Venting & air — general

Figure 19 Evergreen® venting and air piping — DIRECT VENT ONLY — OPTIONS and PIPING LIMITS

The table below lists the acceptable vent/air pipe terminations described in this manual. Follow all instructions provided to install the vent/air system.
NOT SHOWN below, but also approved, are the polypropylene piping and terminations listed in Figure 20, For these applications, use ONLY the manufacturers’ parts listed and follow all instructions provided by the pipe manufacturer.

Evergreen® Model| Maximum vent and air pipe length = 100 feet for all applications

(Minimum length for all applications is 2 feet)

(All applications include allowance for the termination fittings plus one elbow in air piping and one elbow in vent piping).

| USE SWEEP ELBOWS ONLY
---|---|---
See Figure 20 for material specifications | See Figure 105 for part/kit numbers
Vent and air pipe sizes:

Maximum vent lengths apply for vent and air pipe.

Boilers will derate as vent/air pipe length increases — see rating data in Figure 118 for derate amounts.

155

| 3| PVC/PVC-DWV CPVC, PP, SS| 3| PVC/PVC-DWV CPVC, SS, PP| 3| PVC/PVC-DWV CPVC, PP, SS| 3| PVC/PVC-DWV CPVC, PP, SS| 3| PVC/PVC-DWV CPVC, PP, SS| 3| PVC /PVC-DWV CPVC, PP, SS
Model 155 may be concentric sidewall vented using Centrotherm polypropylene pipe (Eco Systems InnoFlue® Single-wall) ONLY if using Centro- therm stainless steel concentric termination kit, part number ICWS3513.
All elbows in vent and air piping must be swept elbows ONLY. DO NOT use short-radius elbows.
Equivalent feet for elbows (USE SWEEP ELBOWS ONLY) — deduct from max. equivalent length of piping (does not apply to termination fittings). PVC

• 7 feet per for each additional 90° sweep elbow or 45° elbow — If piping contains more than 1 elbow in air or vent piping, other than termination fittings. PP

• Centrotherm 3” – 87° elbow = 8’ | 3” – 45° elbow = 3’

• Duravent 3” – 90° elbow = 7’ | 3” – 45° elbow = 3’

Note 1:| Material abbreviations: PP = polypropylene, SS = AL29-4C stainless steel

If using polypropylene or stainless pipe, provide adapters for 3” boiler connections and terminations, if required IPEX 3” PVC concentric vent kits can be used with standard PVC pipe, fittings, and cement (ANSI/ASTM D1785) except if ULC S636 compliance is required. For ULC S636 compliance, all pipes, fittings, and cement must be IPEX System 636. For UL 1738 compliance all pipe, fittings, and cement must be IPEX System 1738. If 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.

Note 2:| Use only Weil-McLain approved termination kits listed in Figure 105

Figure 23 Evergreen® venting and air piping — DIRECT VENT ONLY — OPTIONS and PIPING LIMITS

The table below lists the acceptable vent/air pipe terminations described in this manual. Follow all instructions provided to install the vent/air system.
NOT SHOWN below, but also approved, are the polypropylene piping and terminations listed in Figure 24.
For these applications, use ONLY the manufacturers’ parts listed and follow all instructions provided by the pipe manufacturer.

E v e r g r een ® **Model| Maximum vent and air pipe length = 100 feet for all applications**

(Minimum length for all applications is 2 feet equivalent plus termination)

(All applications include allowance for the termination fittings plus one elbow in air piping and one elbow in vent piping).

| USE SWEEP ELBOWS ONLY
---|---|---
See Figure 24, for material specifications | See Figure 111, for part/kit numbers
Vent and air pipe sizes:

Maximum vent lengths apply for either a 3” or 4” vent and air pipe.

If using a 3” pipe, provide 4”x 3” tapered reducers at boiler connections and Weil-McLain vent/air cap or at concentric terminations.

Boilers will derate as vent/air pipe length increases — see rating data in Figure 123, for derate amounts.

When transitioning from 4-inch to 3-inch, use a tapered reducer with a 4” PVC nipple (l ≥ 6”) . Do not use 4-inch to 3-inch bushing. The bushing will Not seal in the boiler adapter.

Equivalent feet for elbows (USE SWEEP ELBOWS ONLY) — deduct from max. equivalent length of piping (does not apply to termination fittings).

PVC • 7 feet per for each additional 90° sweep elbow or 45° elbow — If piping contains more than 1 elbow in the air or vent piping, other than termination fittings.

PP • Centrotherm 3” – 87° elbow = 8’ | 3” – 45° elbow = 3’ || 4” – 87° elbow = 8’ | 4” – 45° elbow = 3’

• Duravent 3” – 90° elbow = 7’ | 3” – 45° elbow = 3’ || 4” – 90° elbow = 12’ | 4” – 45° elbow = 5’

Note 1| Material abbreviations: PP = polypropylene, SS = AL29-4C stainless steel

If using polypropylene or stainless pipe, provide adapters for 4” boiler connections and terminations, if required IPEX PVC concentric vent kits can be used with standard PVC pipe, fittings, and cement (ANSI/ASTM D1785) except if ULC S636 compliance is required. For ULC S636 compliance, all pipes, fittings, and cement must be IPEX System 636. For UL 1738 compliance all pipe, fittings, and cement must be IPEX System 1738. If using IPEX kits, use only the IPEX product code listed in Figure 11. Contact Weil-McLain for ordering information and availability of Weil-McLain venting kits.

Note 2| Use only Weil-Mclain-approved termination kits listed in Figure 111,

WM Technologies, LLC
500 Blaine Street
Michigan City, IN 46360-2388
weil-mclain.com
Part number 550-100-585/0324

Documents / Resources

| WEIL-MCLAIN 110-399 Condensing Gas Boilers [pdf] Instructions
110-399, 110-399 Condensing Gas Boilers, Condensing Gas Boilers, Gas Boilers, Boilers
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