State Industries SHE 50 76N instruction manual Planning the Vent System, Condensate

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lines must be able to flow freely to an appropriate drain. Do not allow condensate lines to become crimped closed.
Analyze entire vent system to make sure that condensate will not become trapped in a section of vent pipe and therefore reduce open cross sectional area of vent.
must not allow back flow through drain line. Condensate
Condensate lines must be free and clear of debris and

PLANNING THE VENT SYSTEM

Plan the route of the vent system from the discharge of the blower to the planned location of the vent terminal. Refer to VAA instruction on page 26 while planning the vent system.

1.Layout total vent system to use a minimum of vent pipe and elbows.

2.This water heater is capable of venting flue gases equivalent to 25’ (7.6 m) of 2” pipe, 65’ (19.8 m) of 3” pipe, or 128’ (39.0 m) of 4” pipe as listed in Table 1.

 

 

TABLE 1

 

 

 

 

 

Number of

2” Maximum

3” Maximum

4” Maximum

90° Elbows

Pipe - ft. (m)

Pipe - ft. (m)

Pipe - ft. (m)

1

20

(6.1)

60 (18.3)

120 (36.6)

2

15

(4.6)

55 (16.8)

112 (34.1)

3

10

(3.0)

50 (15.2)

104 (31.7)

4

 

--

45 (13.7)

96 (29.3)

5

 

--

40 (12.2)

88 (26.8)

6

 

--

35 (10.7)

80 (24.3)

The minimum vent lengths for each of the pipe sizes is one 90°on top of the unit plus 2’ (61cm) of straight pipe and the appropriate termination.

NOTE: The equivalent feet (m) of pipe listed above are exclusive

of the termination. That is, the termination, with an installed screen, is assumed to be in the system and the remainder of the system must not exceed the lengths discussed above.

3.The blower discharge adapter is made to accept only straight sections of 2” pipe. To start, a minimum of 2 inches (5.1 cm) of 2” pipe must be attached to the blower discharge, see Figure 17.

If using 2” inch vent pipe:

A minimum of 2 inches (5.1 cm) must be attached to the blower before the first elbow. After the first elbow add the additional venting required for the installation. The total system cannot exceed the lengths discussed above, where each elbow is equal to 5 feet (1.5 m) of straight pipe.

If using 3” or 4” inch vent pipe:

Two inches (5.1 cm) of pipe must be attached to blower discharge before adding a reducer to acquire desired pipe diameter. An appropriately sized 45 degree schedule 40 DWV elbow (field supplied) vent terminal must be obtained with an equivalent screen (supplied in vent kit).

The total system cannot exceed equivalent pipe lengths discussed above where each elbow is equal to 5 feet (1.5 m) of straight pipe (3” vent pipe) or 8 feet (2.4 m) of straight pipe (4” vent pipe).

U.S. Installations

NOTE: This unit can be vented with PVC pipe materials (DWV

ASTM-D2665 or CSA B181.2; Schedule 40, 80, 120 ASTM-D1785

or CSA B137.3; or SDR Series ASTM-D2241 or CSA B137.3), CPVC pipe materials (CPVC41 ASTM-D2846 or CSA B137.6; Schedule 40, 80 ASTM-F441 or CSA B137.6; or SDR Series ASTM-F442), ABS pipe materials (Schedule 40 DWV ASTM-D2661 or CSA B181.1). Fittings, other than TERMINATION should be equivalent to PVC-DWV fittings meeting ASTM D-2665 (Use CPVC fittings, ASTM F-438 for CPVC pipe and ABS fittings, ASTM D-2661/3311 for ABS pipe). If CPVC or ABS pipe and fittings are used, then proper cement must be used for all joints, including joining pipe to Termination (PVC Material). If local codes do not

allow use of PVC termination when a material other than PVC is used

for venting, then an equivalent fitting of that material may be substituted if screen in PVC terminal is removed and inserted into new fitting.

PVC Materials should use ASTM D-2564 Grade Cement; CPVC Materials should use ASTM F-493 Grade Cement and ABS Materials should use ASTM D-2235 Grade Cement.

Canadian Installations

Installation of this water heater must comply with CAN/CSA B149.1

-Natural Gas and Propane Installation Code which requires the vent system components be certified to ULC S636.

This water heater has been design certified to be vented with PVC pipe certified and marked as complying with ULC S636. This water heater is supplied with a 2 inch 22.5 degree termination elbow that is a special fitting that must be used with this appliance. Any outlet piping, fittings and glue used to vent this appliance that is not supplied by the manufacturer must comply with the ULC S636 requirements.

If water heater is being installed as a replacement for an existing power vented heater in pre-existing venting, a thorough inspection of existing

venting system must be performed prior to any installation work. Verify that correct material as detailed above has been used, and that minimum or maximum vent lengths and terminal location as detailed in this manual have been met. Carefully inspect entire venting system for any signs of cracks or fractures, particularly at joints between elbows and other fittings and straight runs of vent pipe. Check system for signs of sagging or other stresses in joints as a result of misalignment of any components in system. If any of these conditions are found, they must be corrected in accordance with venting instructions in this manual before completing installation and putting water heater into service.

NOTE: A. For water heaters in locations with high ambient

temperatures (above 100°F) it is recommended that CPVC pipe and fittings be used. B. A 22.5 degree elbow (2” vent pipe) or a 45 degree elbow (3” and 4” vent pipe) with an installed screen VENT

TERMINAL must be used in all cases.

4.There will be some installations where condensate will be formed in the horizontal runs of the vent system. This condensate will run into the condensate boot attached to the blower and out the fitting. The water heater is shipped with condensate hose that attaches to the fitting on the condensate boot. No other Tee or fitting is required. See Figures 17, 20 and 21.

CONDENSATE

This water heater is a condensing unit and requires a drain to be located in close proximity to allow condensate to drain safely. One hose from

blower housing, two flexible hoses from blower outlet adaptor, along with another flexible hose from VAA if installed, run to barb fittings on vent pipe assembly #2. Hose is clamped by rubber clips and flexible hoses

by a clamp on jacket top cover. See Figure 17. Condensate drains from

the unit at the exhaust tee located at the bottom of the unit (see figure 16). Condensate from this water heater is mildly acidic. Please note

that some local codes require that condensate is treated by using a pH

neutralizing filter prior to disposal.

NOTE: It is important that the field supplied drain lines beyond the 1/2” adaptor of vent pipe assembly #1 should be installed

continuously tilted downward toward an appropriate drain. See Figure

16.If these instructions are not followed or if condensate drain line is blocked, water will spill from condensate trap. Do not block the holes in the hex plug on top of a small tee in vent pipe assembly #1. As with every water heater installation, a drain pan should be used to prevent water damage to surrounding area. If necessary, a condensate pump with an incorporated reservoir may be used to pump water to an appropriate drain. To avoid condensate spillage, select a pump with an overflow switch.

Caution must be used to ensure that drain is free and clear of debris

and will not allow backflow through the condensate drain line.

Consideration must be given to avoid freezing of the condensate lines which could result in excessive build up of condensate inside the water heater. Waterproof heat tape may be required to prevent freezing of condensate lines. Please ensure that the outlet of condensate drain does not create a slippery condition which could lead to personal injury. Care should be taken to ensure there is no kink or twist in any condensate hose. If a VAA is not installed, the

unused barb fitting in vent pipe assembly #1 should be plugged using

one of the break-away plugs.

Breathing Hazard - Carbon Monoxide Gas

Do NOT block the holes in the hex plug of vent pipe assembly #1.

Do NOT elevate any portion of the field supplied drain line beyond the 1/2" adaptor above the adaptor. This

must be true for entire length of the drain line including

the exit into an appropriate drain.

Breathing carbon monoxide can cause brain damage or death.

Always read and understand instruction manual.

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Contents Whenever maintenance adjustment or service is required Power Vented GAS Models W/HOT Surface IgnitionPrinted 197421-003Safe INSTALLATION, USE and Service ApprovalsImportant Definitions General Safety Information General Safety Information Introduction Table of ContentsApproved Carbon Monoxide Detectors Installation of Carbon Monoxide DetectorsSignage ExemptionsTypical Installation Replacement Parts and Deliming ProductsElbow Access Door Condensate Hose and Drain PAN Mixing Valves Rough-In-Dimensions ROUGH-IN-DIMENSIONSCapacity and Gas and Electrical Characteristics Recovery capacity based on 90% thermal efficiencyFacts to Consider About the Location Locating the NEW Water HeaterAir REQUIREMENTs Insulation BlanketsConfined Space Unconfined SpaceFresh Air Openings For Confined Spaces Outdoor Air Through Two OpeningsOutdoor AIR Through TWO Horizontal Ducts Outdoor AIR Through TWO Vertical DuctsAIR from Other Indoor Spaces Chemical Vapor Corrosion Installing the NEW Water HeaterWater Piping Space Heating and Potable Water SystemTemperature-Pressure Relief Valve Thermal ExpansionValve and Pipe Insulation if supplied High Altitude Installation Contact qualified installer or service agencyGas Piping Sediment Traps Filling the Water HeaterPer square inch 3.5 kPa Venting Vent Pipe AssemblyVent Pipe Termination Termination Clearances Sidewall Power VentPlanning the Vent System CondensateBreathing Hazard Carbon Monoxide Gas Blower Assembly Installation Installation of Vent SystemVent Terminal INSTALLATION, Sidewall Chisel an opening approximately one half inch 1.3 cm larger Power Vent Wiring Schematic FigureThan the marked circle Pointed in the correct position, see FigureInstallation of Vertical Vent System Installation of Vent SYSTEM, SidewallVent Attenuation Assembly Installation Vent attenuation assembly Flexible tubing Instruction sheetVertical VAA Installations Recommended Inch vent Vertical VAA Installations Recommended BRUSH* Size for Primer Cement Applications Vent Pipe PreparationStep E Step BStep F Step GDo not try to light the burner by hand Power Before ServicingWhat to do if YOU Smell GAS Do not TRY to Light the Burner by HandTemperature Indicators Temperature Adjustment Buttons Temperature RegulationDisplay D E FFor Your Information Start UP ConditionsOperational Conditions Anode ROD Inspection Periodic MaintenanceKeep hands clear of drain Temperature-Pressure Relief Valve TestTo Flush the Water Heater Storage Tank Open the water heater drain valve to flush the storage tankLeakage Checkpoints ServiceTrouble Shooting Troubleshooting GuidelinesTurn off power to the water heater Ensure the flame sensor is clean use ultra fine steelAssembly if damaged or defective Unplug ignitor assembly plug from control. Check resistanceResistance of the black resistor wire between pins Unplug the ignitor assembly plug from the control. CheckAssembly .2 If the reading taken is less than 100,000 Check vent temperature limit switch if it is determinedTroubleshooting Guidelines Limited Warranty