PB Heat Gas Boiler manual Venting, Inlet Air And Condensate

VENTING, INLET AIR AND CONDENSATE

4.The minimum combined equivalent length is 16 equivalent feet.

5.The maximum combined equivalent length can be extended by increasing the diameter of the vent pipe. However, the transitions should begin a minimum of 15 equivalent feet from the boiler.

a.Transitions should always be made in vertical sections of pipe to prevent the condensate from pooling in the vent pipe.

b.Use a 3" x 2" reducing coupling to transition from the PI-T50 and PI-T80 boiler connections to a 3" vent.

c.Use a 4" x 3" reducing coupling to transition from the PI-80, PI-140, and PI-199 boiler connections to 4" vent.

d.The maximum equivalent length for the increased diameter vent pipes is 125 feet.

e.If the transition occurs at a distance greater than 15 equivalent feet from the boiler, the maximum equivalent length will be reduced. See Table 5.2. Standard Vent Pipe is 2” and Oversized Vent Pipe is 3” for PI-T50 and PI-T80. Standard Vent Pipe is 3” and Oversized Vent Pipe is 4” for PI- 80 through PI-199.

Table 5.2: Maximum Equivalent Vent Length for Oversized Vent Pipe

Transition	TEL of	TEL of	Maximum
Point	Standard 2”	Oversized 3”
			TEL of all
(ft from	or 3” Vent	or 4” Vent
			Vent Pipe (ft)
boiler)	Pipe (ft)	Pipe (ft)
15	30	95	125
20	40	77-1/2	117-1/2
25	50	60-1/2	110-1/2
30	60	43	103
35	70	26	96
40	80	8-1/2	88-1/2
None	85	0	85

TEL = Total Equivalent Length

E.EXHAUST VENT AND AIR INTAKE PIPE INSTALLATION

1.On the PI-T50 and PI-T80 the 2" exhaust vent connection is located on the top, right side of the boiler and the air intake is on the top, left side. See Figure 10.1. The air intake connection is intended for a slip fit. No sealant or adhesive is required.

2.On the PI-80, PI-140, and PI-199 Boilers the 3” exhaust vent connection is located on the rear of the boiler and the air intake is higher and toward the left side when the boiler is viewed from the front. See Figure 10.2. The air intake connection is intended for a slip fit. No sealant or adhesive is required.

3.Use only solid PVC, CPVC, or ABS schedule 40 or 80 pipe. FOAM CORE PIPING IS NOT APPROVED.

4.Remove all burrs and debris from joints and fittings.

5.All joints must be properly cleaned, primed, and cemented. Use only cement and primer approved for use with the pipe material. Cement must conform to ASTM D2564 for PVC or CPVC pipe and ASTM D2235 for ABS pipe.

WARNING

All joints of positive pressure vent systems must be sealed completely to prevent leakage of flue products into the living space.

6.Horizontal lengths of exhaust vent must slope back towards the boiler not less than ¼" per foot to allow condensate to drain from the vent pipe. If the vent pipe must be piped around an obstacle that causes a low point in the pipe, a drain pipe must be connected to allow condensate to drain.

7.All piping must be fully supported. Use pipe hangers at a minimum of 4 foot intervals to prevent sagging of the pipe where condensate may form.

8.Do not use the boiler to support any piping.

9.A screened straight coupling is provided with the boiler for use as an outside exhaust termination.

10.A screened inlet air tee is provided with the boiler to be used as an outside intake termination.

11.The following are optional intake air/exhaust vent terminations available from your PB Heat, LLC distributor for use with Pinnacle boilers.

Table 5.3: Vent Termination Kits

	Stock
Description	Code
2" PVC Concentric Vent Termination Kit	91469
3" PVC Concentric Vent Termination Kit	91403
2" Stainless Steel Vent Termination Kit	91465
3" Stainless Steel Vent Termination Kit	91402
4" Stainless Steel Vent Termination Kit	91401

12.Refer to Figure 5.3 to 5.10 for sidewall venting and Figures 5.11 to 5.14 for vertical venting.

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