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Outdoor Armor Water 

Heater Installation & 

Operation Manual

Models:  151 - 801

This manual must only be used by 
a qualified heating installer / service 
technician. Read all instructions, 
including this manual and the 
Outdoor Armor Water Heater 
Service Manual, before installing. 

 

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

 WARNING

Save this manual for future reference.

OAW-I-O Rev D

-- This water heater MUST NOT be 
installed in any location where gasoline or 
flammable vapors are likely to be present.

--  WHAT TO DO IF YOU SMELL GAS

• Do not try to light any appliance.
• Do not touch any electric switch; do not 
  use any phone in your building.
• Immediately call your gas supplier from 
  a near by phone.  Follow the gas supplier’s 
 instructions.
• If you cannot reach your gas supplier, call 
  the fire department.
• Installation and service must be performed 
  by a qualified installer, service agency, or 
  the gas supplier.

 WARNING:  

If the information in 

this manual is not followed exactly, a fire 
or explosion may result causing property 
damage, personal injury or loss of life.

Summary of Contents for 151 - 801

Page 1: ...is water heater MUST NOT be installed in any location where gasoline or flammable vapors are likely to be present WHAT TO DO IF YOU SMELL GAS Do not try to light any appliance Do not touch any electri...

Page 2: ...ERMINE WATER HEATER LOCATION Provide Clearances 9 Outdoor Vent Air Intake Location 9 Flooring and Foundation 9 Prevent Combustion Air Contamination 9 Corrosive Contaminants and Sources 9 2 PREPARE WAT...

Page 3: ...ter if any part has been under water The possible damage to a flooded appliance can be extensive and present numerous safety hazards Any appliance that has been under water must be replaced When calli...

Page 4: ...points for the line voltage power and the pump 18 Water heater drain port Location from which the heat exchanger can be drained 19 Low voltage connection board The connection board is used to connect...

Page 5: ...360 26 31 40 15 19 24 1 Left Side inside unit Model 286 The Outdoor Armor Water Heater How it works continued Left Side inside unit Models 151 200 Models 151 200 19 10 16 23 28 21 32 18 7 12 27 13 8 4...

Page 6: ...42 20 39 27 14 IMG00395 Models 400 501 2 28 16 23 3 5 34 15 17 4 8 7 18 32 21 26 IMG00396 19 1 Rear View Models 400 501 Left Side inside unit Models 400 501 41 27 9 12 13 39 42 25 14 20 29 IMG00288 30...

Page 7: ...he outdoor water heater is listed to UL353 The auto reset high limit is listed to ANSI Z21 87 7 Maximum allowed working pressure is located on the rating plate NOTICE Model Number Note Change N to L f...

Page 8: ...ocate unit at least 3 feet 0 91m from any wall or vertical surface to prevent wind conditions from affecting performance The outdoor unit must not be installed in an area that is enclosed by walls or...

Page 9: ...hich may cause contaminated combustion air Outdoor vent air intake location The flue products discharged from the flue outlet on the outdoor vent may be very hot Avoid touching or other direct contact...

Page 10: ...REWS WALL STRAP ELBOW FLUE PIPE VENT TERMINATION VENT COVER CLAMP IMG00445 NOTE VERIFY GASKETS ARE SEATED EVENLY INSIDE THE GROOVE Figure 2 3 Install Flue Pipe Assembly Models 701 801 5 Slide the flue...

Page 11: ...ice Models 151 286 Models 151 286 1 Remove the top and front access covers from the unit Phillips screwdriver required for removal 2 Remove the three screws securing the gas valve to the venturi FIG 2...

Page 12: ...vel a Adjust legs if necessary to level the water heater see FIG 2 8 below COVER ALLEN WRENCH ADJUSTMENT SCREW Figure 2 7 Gas Valve Adjustment Models 601 801 Models 601 801 1 Remove the top access cov...

Page 13: ...ng required by local codes NOTICE Flow switch and relief valve installation Basic steps are listed below to guide you through the installation of the flow switch and relief valve provided with the uni...

Page 14: ...he amount of turns listed in Table 3A based on the model Consult the manufacturer s instructions for wiring the flow switch to your system NOTICE Be sure to install flow switch so that the arrow on th...

Page 15: ...to achieve proper operation As shipped from the factory the tank sensor is in the literature package shipped with the unit Placing the sensor in the tapping provided on the storage tank will improve t...

Page 16: ...o support the weight of the water heater circulator pump with the piping or its accessories Refer to the pump manufacturer s installation instructions Failure to comply could result in severe personal...

Page 17: ...mp with the piping or its accessories Refer to the pump manufacturer s installation instructions Failure to comply could result in severe personal injury death or substantial property damage CAUTION F...

Page 18: ...e illustrations are meant to show system piping concept only the installer is responsible for all equipment and detailing required by local codes Indoor tank shown for illustration purposes The piping...

Page 19: ...4 5 5 501 3 3 1 2 4 5 5 5 6 601 3 3 1 2 4 5 5 5 6 701 3 4 5 5 6 6 6 801 3 4 5 6 6 6 6 NOTICE Please note that these illustrations are meant to show system piping concept only the installer is responsi...

Page 20: ...etailing required by local codes Indoor tank shown for illustration purposes Model Number of Units 2 3 4 5 6 7 8 Required Pipe Sizes in NPT 151 1 1 2 2 2 2 2 1 2 3 3 200 1 1 2 2 2 1 2 2 1 2 3 3 4 286...

Page 21: ...e appliance must be disconnected from the gas supply piping system during any pressure testing of that system at a test pressure in excess of 1 2 PSIG 3 5 kPa b The appliance must be isolated from the...

Page 22: ...wing verify during water heater startup 2 Install 100 lockup gas pressure regulator in supply line if inlet pressure can exceed 14 inches w c at any time Adjust lockup regulator for 14 inches w c maxi...

Page 23: ...on the gas supply at the field installed manual gas valve WARNING 5 Turn the power switch to the ON position 6 Adjust the temperature set point on the control panel of the SMART SYSTEM control module...

Page 24: ...PLACE THE MANOMETER TUBING OVER THE PRESSURE TAP Figure 4 8 Inlet Gas Supply Check Model 501 DO NOT adjust gas valve outlet pressure The gas valve is factory set for the correct outlet pressure This...

Page 25: ...ter pump is shipped loose on all Armor models Wire the water heater pump as shown in FIG 5 1 4 The outdoor water heater is capable of controlling a building recirculation pump field supplied Wire the...

Page 26: ...pair cable If desired the shield can be connected to ground by installing a jumper wire between terminals 1 and 3 on connector X5 on the optional ModBus interface module NOTICE See Section 4 Gas Conn...

Page 27: ...hould be wired to the low voltage connection board at the terminals marked for the tank sensor see FIG 5 3 The Leader control will use the water temperature at the tank sensor to control the operation...

Page 28: ...BUILDING MANAGEMENT SYSTEM COM NO LOW WATER CUTOFF TANK THERMOSTAT SHIELD SHIELD TO NEXT HEATER A B A B FROM PREVIOUS HEATER A B IMG00423 Figure 5 3 Low Voltage Field Wiring Connections Outdoor Armor...

Page 29: ...proved by the authority having jurisdiction In the absence of other authority PVC and CPVC pipe must comply with ASTM D1785 or D2845 Cement and primer must comply with ASME D2564 or F493 8 A condensat...

Page 30: ...ersonal injury death or substantial property damage PVC TEE ASSEMBLY FACTORY SUPPLIED TO FLOOR DRAIN 2 PVC CAP WITH BLOCKED DRAIN SWITCH RETAINING SCREW CONDENSATE FROM HEAT EXCHANGER Figure 7 1 Conde...

Page 31: ...Check for gastight seal at every connection seam of air piping and vent piping Venting system must be sealed gastight to prevent flue gas spillage and carbon monoxide emissions which will result in s...

Page 32: ...all a qualified service technician to inspect the appliance and to replace any part of the control system and any gas control which has been under water OPERATING INSTRUCTIONS 1 STOP Read the safety i...

Page 33: ...33 7 Start up continued Figure 7 3 Operating Instructions Models 400 801 Outdoor Armor Water Heater Installation Operation Manual...

Page 34: ...ition and ensuring that the water heater shuts down and registers an alarm Open the manual shutoff valve and reset the control 9 Turn the main power off to the water heater 10 Place the water heater b...

Page 35: ...en status NOTICE Please note that the brackets denote screen status NOTICE When installed in a Cascade system the individual controls must be programmed for cascade operation This is accomplished by a...

Page 36: ...outlet temperature sensor When the outlet temperature exceeds 185 F the unit will reduce the fan speed If the outlet water temperature exceeds 195 F the control will shut the unit down until it cools...

Page 37: ...continued 1 Turn ON the main power to the water heater by placing the ON OFF switch in the ON position 2 From the Status Screen press the NAVIGATION dial to access the Set Points Screen 3 Press the L...

Page 38: ...page 34 of this manual to program the set point If the water temperature at the tank is less than the set point differential then the control will initiate a call for heat on the Cascade see the Outd...

Page 39: ...larger models the control will lock out if this second attempt also fails On the 400 and smaller models the control will perform a total of 4 attempts before locking out 6 If flame is detected it hold...

Page 40: ...and monitor water heater operation 8 Operating information The information on the bottom of the display shows the functions of the two SELECT keys on either corner and the NAVIGATION dial in the cente...

Page 41: ...ing at the displayed percentage POSTPURGE The call for heat has been satisfied and the unit runs the fan for an additional 10 seconds to clear the combustion chamber and vent system of residual flue p...

Page 42: ...UMP The status of the DHW pump output BMS VOLTAGE The voltage received from a BMS system RATE OUTPUT A 0 10V signal indicating the firing rate of the water heater DHW RUN HOURS The total hours of oper...

Page 43: ...ION dial will display the Set Points Screen Turning the NAVIGATION dial will move the cursor up or down Turning the NAVIGATION dial will increase or decrease the current setting F RIGHT SELECT key fun...

Page 44: ...kout and performance verification per Section 7 of this manual Flame inspection stable uniform Flame signal at least 10 microamps at high fire Clean the heat exchanger if flue temperature is more than...

Page 45: ...and inspect the interior of the water heater 2 Vacuum any sediment from inside the water heater and components Remove any obstructions Clean condensate trap 1 Inspect the condensate drain line condens...

Page 46: ...ere personal injury death or substantial property damage Following installation the valve lever must be operated AT LEAST ONCE A YEAR to ensure that waterways are clear Certain naturally occurring min...

Page 47: ...eaning heat exchanger For recommended materials including brush appropriate extension s refractory cover and detailed instructions see Table 9B Heat Exchanger Cleaning Kits 1 Shut down water heater Fo...

Page 48: ...n 4 Wheel Brush MSC20084 3mm Allen Wrench MSC20086 1 4 x 24 Drill Extension 501 801 KIT30064 CTN20005 Rear Refractory Cover MSC20083 Nylon 4 Wheel Brush MSC20085 1 4 x 12 Drill Extension MSC20086 1 4...

Page 49: ...water or electricity connected to the unit As such actual switch states may vary from those shown on diagrams depending upon whether utilities are connected or a fault condition is present 2 See wiri...

Page 50: ...st be replaced with wire having same wire gauge AWG and rated for a minimum of 105 C Exceptions Replacement high voltage spark lead and ribbon cables must be purchased from the factory Use of a non ap...

Page 51: ...Notes Installation Operation Manual OUTDOOR CONDENSING WATER HEATER 51...

Page 52: ...C12102 reflects the addition of condensate kit option information for areas that may reach below 32 F as well as a warning not to install OA 400 in these areas and Table 1A on page 8 Revision D ECO C1...

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