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14 

WATER HEATER INSTALLATION

WATER HEATER INSTALLATION

PLANNING THE VENT SYSTEM

This water heater may be installed in either a Power Direct Vent 

(PDV) or in a Power Vent (PV) configuration. Both configurations 

must be properly vented for removal of exhaust gases to the outside 

atmosphere. Correct installation of the vent pipe system is mandatory 

for the safe and efficient operation of this water heater and is an 

important factor in the life of the unit.

This water heater, when installed in a PDV configuration, has a direct 

vent system in which all combustion products (exhaust) must be 

vented to the outdoors and will require outdoor air for combustion. 

Both intake and exhaust piping will require a sealed piping system 

as described in these instructions.

When installed in a Power Vent (PV) configuration, this water heater 

will require room air for combustion. Adequate air intake resources 

are required. The exhaust piping will require a sealed piping system 

as described in these instructions.

This unit includes an air intake terminal 

and an exhaust vent terminal.

Improper Installation, use and service may result

in property damage.

CAUTION

Breathing carbon monoxide can cause brain damage or death.

Always read and understand instruction manual.

 Install vent system In accordance with codes.

 Do not operate water heater if flood damaged.

 Install water heater in accordance with the 

instruction manual.

 Do not operate if soot buildup is present.

 Do not obstruct water heater air intake(s) with 

insulating jacket or blanket.

 Do not place chemical vapor emitting products near 

water heater.

 Gas and carbon monoxide detectors are available.

 Never operate the heater unless it is vented to the 

outdoors and has adequate air supply to avoid risks 

of improper operation, fire, explosion or asphyxia-

tion.

 Analyze the entire vent system to make sure that 

condensate will not become trapped in a section of 

vent pipe and therefore reduce the open cross 

sectional area of the vent.

Breathing Hazard - Carbon Monoxide Gas

WARNING

Table 4

 and 

Table 5

 (page 15) list the allowable vent materials. 

Figure 

27, Figure 28,

 and 

Figure 29

 (page 23) show various end termination 

details and clearances for PDV installations. 

Figure 31, Figure 32, and 

Figure 33

  (page  27)  shows  various  end  termination  details  and 

clearances for PV installations

Note: 

The  information  provided  in 

Figure 2 

(page  8)  is  intended 

as a guideline for good vent installation practices only.

This  water  heater  may  be  vented  horizontally  through  a  wall  or 

vertically through the roof. Pipe runs must be adequately supported 

along both vertical and horizontal runs according to local codes or 

the venting manufacturer’s instructions such as IPEX (www.ipexna.

com/resources/technical-library).

Note: 

Do  not  use  an  elbow  as  a  support  point.  Elbows  are  not 

designed to carry the load or stresses of the venting system 

if they are rigidly held.

Note: 

Do not use the condensation trap as a support point. It  not 

designed to carry the load or stresses of the venting system. 

Vent piping must be supported adequately and not put any 

weight on the condensation trap.

Vent pipe must be installed in accordance with all local codes or, 

in the absence of such, the latest edition of 

Natural Gas and Propane 

Installation Code B149.1

.  In  addition,  clearances  from  combustible 

materials must be provided in accordance with information in the 

“Locating The  New  Water  Heater”  section  of  this  manual. Take 

note of the clearance and venting requirements when installing in a 

confined space such as a small room or closet. Vent pipes serving 

power vented appliances are classified by building codes as “vent 

connectors”.

• 

Plan  the  vent  system  layout  so  that  proper  clearances  are 

maintained from plumbing and wiring.

• 

Plan the layout of the vent system from the vent termination to 

the water heater considering all the elbows (90° and 45°) plus 

the number of feet of pipe that will be needed to install the total 

vent system.

• 

Venting should be as direct as possible with the fewest number 

of fittings.

• 

Use  long  radius  45°  and  long  radius  90°  elbows  wherever 

possible.

• 

Avoid using 90° elbows “back to back” and do not use street 

elbows.

• 

Maintain  a  minimum  150  mm  (6”)  straight  section  between 

elbows.  Closely  coupled  and  short  radius  elbows  reduce 

the  venting  capacity. 

Figure 12

  shows  examples  of  vent  pipe 

connections.

Breathing carbon monoxide can cause brain damage or death.

Always read and understand instruction manual.

• Install water heater in accordance with the 

instruction manual and B149.1.

• To avoid injury, combustion and ventilation air 

must be taken from outdoors.

• Do not place chemical vapour emitting products 

near water heater.

Breathing Hazard - Carbon Monoxide Gas

WARNING

Summary of Contents for 100 Series

Page 1: ...ch any electrical switch do not use any phone in your building Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions If you cannot reach your gas supplier c...

Page 2: ...Installation 31 Space Heating and Potable Water System 32 Combo Heating Inlet And Outlet Side Taps 32 Combo Heating 32 System Requirements 32 Installation 33 Electrical Supply 33 Dedicated Power Wiri...

Page 3: ...hazardous situation which if not avoided could result in property damage All safety messages will generally tell you about the type of hazard what can happen if you do not follow the safety message an...

Page 4: ...flow THERE SHOULD BE NO SMOKING OR OPEN FLAME NEAR THE FAUCET AT THE TIME IT IS OPEN Explosion Hazard Flammable hydrogen gases may be present Keep all ignition sources away from faucet when turning o...

Page 5: ...sources away from faucets after extended periods of non use Maintain required clearances to combustibles Do not expose water heater controls to excessive gas pressure Fire Hazard Do not install water...

Page 6: ...e essential to the proper operation of the water heater and your safety Detailed installation diagrams are also found in this manual These diagrams will serve to provide the installer with a reference...

Page 7: ...pply Pressure Maximum Supply Pressure Electrical Characteristics Gas Type In W C kPA In W C kPA In W C kPA Volts Hz Amperes Natural 0 0 3 5 1 10 14 3 49 120 60 10 The manifold pressure is the factory...

Page 8: ...l 25 Control Panel 26 Outlet Air Pressure Switch OAPS 27 Blower 28 Gas Control Valve 29 Combo Heating System Return Inlet Optional 30 Temperature Sensor 31 Burner Insulation Shield 32 Burner Refractor...

Page 9: ...9 34 35 33 31 32 27 37 38 41 42 44 43 Figure 3 Blower and Burner Components 44 42 39 35 36 40 34 41 43 Figure 4 Blower and Intake Air Components...

Page 10: ...s the unit from igniting most likely the exhaust is blocked by some means Check to see if the condensate is allowed to flow freely from the condensate trap and for obstructions in the exhaust venting...

Page 11: ...nstall without adequate drainage Property Damage Hazard CAUTION Carefully choose a location for the new water heater The placement is a very important consideration for the safety of the occupants in...

Page 12: ...and liquids in the vicinity of this or any other appliance Avoid all ignition sources if you smell gas Do not expose water heater control to excessive gas pressure Use only gas shown on rating plate M...

Page 13: ...amage Breathing carbon monoxide can cause brain damage or death Always read and understand instruction manual Install water heater in accordance with the instruction manual and B149 1 To avoid injury...

Page 14: ...shows various end termination details and clearances for PV installations Note The information provided in Figure 2 page 8 is intended as a guideline for good vent installation practices only This wat...

Page 15: ...to ULC S636 Check local codes to determine which materials are allowed in your area and only use approved material All venting material and components must be joined with the approved primer cleaner a...

Page 16: ...t systems are designed to use specific adaptors to connect the water heater venting These adaptors are available through your venting supplier The PVC vent termination elbow supplied with this heater...

Page 17: ...ntly push the screen into the termination elbow until it sits against the inside shoulder The debris vent screens are self securing Note In the concentric vent application the vent screen is to be ins...

Page 18: ...Air Condensate Tee Installation DIRECT VENT AIR INTAKE MOISTURE PROTECTION The air intake piping in a direct vent system will normally not have any moisture accumulation in it However in certain case...

Page 19: ...15 ft 4 6 m Clearance in accordance with local installation codes and the require ments of the gas supplier I Clearance to service regulator vent outlet 3 ft 91 cm Clearance in accordance with local i...

Page 20: ...te the same side of roof 5 The centerline of the air intake termination and the centerline of the exhaust vent termination must not be closer than 200 mm 8 6 The air intake terminal and the exhaust ve...

Page 21: ...centers can be found in Table 10 2 Slide both the intake and exhaust pipes through the holes Solvent cement both pipes to the base of the vent termination kit follow the solvent cementing procedures...

Page 22: ...tical roof installation Ensure the combustion air intake location is above the anticipated snow level Table 11 Concentric Vent Termination Kits Vent Dia P N 2 100153586 3 100111100 Combustion Air Abov...

Page 23: ...ted and installed in accordance with local building code and CSA B149 1 Natural Gas and Propane Installation Code 1 Once the proper location has been determined cut 2 holes in the wall large enough to...

Page 24: ...t Number IPEX Part Num ber Description Pipe Outside Diameter Hole Spacing Center to Center 100086241 196984 2 Flush Mount Vent Kitt 2 375 5 63 100187887 196985 3 Flush Mount Vent Kit 3 5 7 63 Each Kit...

Page 25: ...e Equivalent Vent Length Water Heater Model Heater Input Btu Hr Vent Size Inside Diam Pressure Switch Settings in w c Low Profile Equiv Vent Length Intake Exhaust Max Min 40 gal 50 000 2 1 88 1 8 60 f...

Page 26: ...r line ex tended above meter regulator assembly 3 ft 91 cm within a height 15 ft 4 6 m Clearance in accordance with local installation codes and the require ments of the gas supplier I Clearance to se...

Page 27: ...nt Length Measured from this Position Vent Pipe to be sloped down toward heater to prevent water from collecting May require a condensate tee Where snow cover is above normal during winter ensure outl...

Page 28: ...be made by the installer Condensation in the venting system is dependent upon installation conditions including but not limited to ambient temperature and humidity of installation location ambient te...

Page 29: ...BURN HOT HOT DANGER Figure 35 Thermostatic Point of Use Mixing Valve Water temperature over 125 F can cause severe burns instantly resulting in severe injury or death Children the elderly and the dis...

Page 30: ...l be a corresponding increase in water pressure due to thermal expansion Thermal expansion can cause premature tank failure leakage This type of failure is not covered under the limited warranty Therm...

Page 31: ...ain inside the building Be certain that no contact is made with any live electrical part The discharge opening must not be blocked or reduced in size under any circumstances Excessive length over 30 o...

Page 32: ...ating at temperatures higher than required for domestic water purposes a mixing valve must be installed See Figure 35 page 29 If the space heating system requires water temperatures in excess of 120 F...

Page 33: ...nions so that the water heater can be isolated from the heating module should servicing of the water heater become necessary 2 Install a drain valve at the lowest point of the heating loop so that wat...

Page 34: ...he water lines of air and sediment and to ensure complete filling of the tank The electrical power may then be turned on See Start Up page 42 GAS SUPPLY SYSTEMS Do not use water heater with any gas ot...

Page 35: ...heater and A sediment trap ahead of the gas control valve to help prevent dirt and foreign materials from entering the gas control valve A ground joint union of proper size between the manual shut of...

Page 36: ...e pressure drop Schedule 40 Steel or wrought iron pipe is the preferred material for the gas line of this water heater It is imperative to follow the sizing recommendations in the latest version of th...

Page 37: ...Z223 1 NFPA 54 HIGH ALTITUDE INSTALLATIONS Breathing carbon monoxide can cause brain damage or death Always read and understand instruction manual Special consideration must be taken with installa ti...

Page 38: ...y setting on the control system see Table 20 This water heater is equipped with a control system See Control System Operation page 40 Hot water temperatures required for automatic dishwasher and laund...

Page 39: ...monitors the state of the temperature sensor thermistors If the ECO activates due to abnormally high water temperature approximately 190 F the Control Board will lock out and display fault code E00 o...

Page 40: ...nd press the or buttons until reaching the desired value The new value will flash on the LCD display twice per second To validate the new setpoint short press the button If the button is not pressed w...

Page 41: ...aust vent system Installed in accordance with prevailing provisions of local codes or in the absence of such the latest edition of Natural Gas and Propane Installation Code B149 1 Horizontal piping sl...

Page 42: ...valves are open FILLING THE WATER HEATER Avoid water heater damage Fill tank with water before operating Property Damage Hazard CAUTION Never use this water heater unless it is completely full of wat...

Page 43: ...technician or gas supplier DANGER INSTRUCTIONS D UTILISATION OPERATING INSTRUCTIONS A Cet appareil n est pas quip d une veilleuse Le br leur est plut t muni d un dispositif d allumage automatique NE t...

Page 44: ...escape of dangerous flue gasses which could cause deadly asphyxiation Obstructions and deteriorated vent systems may present serious health risk or asphyxiation Chemical vapour corrosion of the flue...

Page 45: ...eanout cover once every 6 months at first Deliming maintenance should then be performed based on the time it takes for 1 inch 2 5 cm of lime to accumulate in the bottom of the water heater CHEMICAL LI...

Page 46: ...if water odour or discolouration occurs Note This rod may reduce but not eliminate water odour problems The water supply system may require special filtration equipment from a water conditioning compa...

Page 47: ...se instructions or have any questions regarding the Temperature Pressure Relief Valve call the toll free number listed on the front page of this manual for technical assistance Temperature pressure re...

Page 48: ...ition failures 0 999999 H10_xxx_xxx H11 Total Flame loss failures 0 999999 H11_xxx_xxx H12 Error code History 1 H12_xxx_xxx H13 Error code History 2 H13_xxx_xxx H14 Error code History 3 H14_xxx_xxx H1...

Page 49: ...The heating mode will be maintained until the call for heat is satisfied tank temperature reaches the Setpoint The gas valve will be turned off closed and the blower will operate for the duration of p...

Page 50: ...set in 15 minutes Manual action E05 Blocked flue Outlet Air Pressure SW open 3rd time in less than one hour Soft Fault Reset in 15 minutes Manual action E06 Blocked flue Outlet Air Pressure SW open 1s...

Page 51: ...Table 25 Error Priority Hard Faults ECO error T Tmax 201F E00 Flue ECO Error Tvent Tvent max 165 F E19 Blower Speed error E21 Blower not running E20 Soft Faults Blower Speed Error E21 Flame out of Se...

Page 52: ...weather or the cold water inlet connection may be leaking C Small amounts of water from temperature pressure relief valve may be due to thermal expansion or high water pressure in your area D The temp...

Page 53: ...53 DIAGRAMS DIAGRAMS WIRING DIAGRAM Figure 48 Wiring Diagram...

Page 54: ...65K 100344198 K SWITCH PRESSURE N C AIR INTAKE 1 88 100344199 K SWITCH PRESSURE N C FLUE 1 8 100344200 K THERMISTOR 3 4NPT 100344201 K TRAP CONDENSATE POLYPROPYLENE 100344202 K DIPTUBE HT2 3 4NPTX3X34...

Page 55: ...55 NOTES NOTES...

Page 56: ...800 527 1953 Parts 800 433 2545 Fax 800 644 9306 www hotwater com In Canada contact A O Smith Enterprises Ltd 599 Hill Street West Fergus ON Canada N1M 2X1 Technical Support 1 888 479 8324 www hotwate...

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