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PART NO. 212626-000

PRINTED IN U.S.A.  0905

        SUPERSEDES PART NO. 192011- 000  REV. 4

MODELS HW-120M, 160M, 200M, 225M

COMMERCIAL GAS COPPER HEAT EXCHANGER WATER HEATER

BURKAY UP-FLOW MODELS

Including Models with Intermittent Pilot Ignition (I.I.D.)

A DIVISION OF A.O. SMITH CORPORATION

McBEE, SOUTH CAROLINA, USA

RENTON, WA, USA

STRATFORD, ONTARIO, CANADA

VELDHOVEN, THE NETHERLANDS

www.hotwater.com

PLACE THESE INSTRUCTIONS ADJACENT TO HEATER

AND NOTIFY OWNER TO KEEP FOR FUTURE REFERENCE

 Installation 

  Operation 

 Maintenance 

 Limited Warranty

WARNING: If the information in these
instructions are not followed exactly, a fire
or explosion may result causing property
damage, personal injury or death.

—Do not store or use gasoline or other

flammable vapors and liquids in the
vicinity of this or any other appliance.

—WHAT TO DO IF YOU SMELL GAS

Do not try to light any appliance.

Do not touch 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, call the fire department.

— Installation and service must be

performed by a qualified installer,
service agency or the gas supplier.

 CAUTION

TEXT PRINTED OR OUTLINED IN RED CONTAINS
INFORMATION RELATIVE TO YOUR SAFETY.  PLEASE READ
THOROUGHLY BEFORE USING APPLIANCE.

Summary of Contents for 160M

Page 1: ...structions are not followed exactly a fire or explosion may result causing property damage personal injury or death Do not store or use gasoline or other flammable vapors and liquids in the vicinity o...

Page 2: ...0 3 4 527 E 5 1 2 140 5 1 2 140 5 1 2 140 5 1 2 140 F 10 254 10 254 10 254 10 254 G 11 13 16 300 11 13 16 300 11 13 16 300 11 13 16 300 H 6 152 7 178 7 178 7 178 J 26 11 16 678 26 11 16 678 26 11 16 6...

Page 3: ...io M3B 2R3 Canada TABLE OF CONTENTS ROUGH IN DIMENSIONS 2 FOREWORD 3 GENERAL SAFETY INFORMATION 3 Precautions 3 4 Grounding Instructions 4 Chemical Vapor Corrosion 4 Liquid Petroleum Models 4 High Alt...

Page 4: ...F THE BURNER ORIFICE IN ACCORDANCE WITH SECTION 8 1 2 OF THE NATIONAL FUEL GAS CODE ANSI Z223 1 FOR CANADIAN INSTALLATIONS CONSULT CANADIAN INSTALLATION CODES AND CAN CGA B149 FAILURE TO REPLACE THE O...

Page 5: ...t remove the protector switch cover and push the reset button after the coil surface temperature cools to less than 2000 F 93 3 C FIGURE 2 DO NOT RESET THIS SWITCH WITHOUT PERFORMING THE SYSTEM CHECKS...

Page 6: ...lectrical requirements of the system Typically the thermostat should have motor full load and locked rotor current ratings which exceed the total amount of current required to drive the pump s control...

Page 7: ...s exactly when inserting this switch into a pipe tee This is necessary in order to assure positive action of the switch with water flow Once the minimum flow rate Table 5 through the heater is reached...

Page 8: ...ADJACENT TO THE HEATER OPEN CONTAINERS OF FLAMMABLE MATERIAL SHOULD NOT BE STORED OR USED IN THE SAME ROOM WITH THE HEATER For appliance installation in locations with elevations above 2 000 feet 600M...

Page 9: ...ted A special vent cap may be required FAILURE TO CORRECT BACK DRAFTS MAY CAUSE AIR CONTAMINATION AND UNSAFE CONDITIONS If the back draft cannot be corrected by the normal methods or if a suitable dra...

Page 10: ...ent relief valve operation This is not a warranty failure An expansion tank may be necessary in the cold water supply to alleviate this situation Contact the local plumbing authority WATER LINE CONNEC...

Page 11: ...TEMPERATURE ONLY FIGURE 7 DANGER TEMPERATURE SETTING SHOULD NOT EXCEED SAFE USE TEMPERATURE AT FIXTURES SEE WATER TEMPERATURE CONTROL WARNING ON PAGE 19 IF HIGHER PREHEAT TEMPERATURES ARE NECESSARY T...

Page 12: ...SHOULD NOT EXCEED SAFE USE TEMPERATURE AT FIXTURES SEE WATER TEMPERATURE CONTROL WARNING ON PAGE 19 IF HIGHER PREHEAT TEMPERATURES ARE NECESSARY TO OBTAIN ADEQUATE BOOSTER OUTPUT ADD AN ANTI SCALD VA...

Page 13: ...TTING SHOULD NOT EXCEED SAFE USE TEMPERATURE AT FIXTURES SEE WATER TEMPERATURE CONTROL WARNING ON PAGE 19 IF HIGHER PREHEAT TEMPERATURES ARE NECESSARY TO OBTAIN ADEQUATE BOOSTER OUTPUT ADD AN ANTI SCA...

Page 14: ...HEATER AND ITS MANUAL GAS SHUTOFF VALVE FROM THE GAS SUPPLY PIPING SYSTEM DURING ANY PRESSURE TESTING OF THAT SYSTEM AT TEST PRESSURES IN EXCESS OF 1 2 PSIG THE GAS SUPPLY LINE MUST BE CAPPED WHEN NO...

Page 15: ...connection All piping diagrams include an electrical wiring diagram to assist the installer in properly wiring of the additional components required to assure correct system operation Figures 11 and...

Page 16: ...16 ELECTRICAL WIRING DIAGRAMS FOR THE HW 120M 160M AND 200M WATER HEATERS I I D SYSTEM PROPANE FIGURE 12 NOTES...

Page 17: ...Y PERSONS EXPERIENCED IN THIS TYPE GAS SERVICE TO AVOID RISK OF FIRE OR EXPLOSION PURGE DISCHARGE MUST NOT ENTER CONFINED AREAS OR SPACES WHERE IGNITION CAN OCCUR THE AREA MUST BE WELL VENTILATED AND...

Page 18: ...SERVICE TECHNICIAN TO INSPECT THE APPLIANCE AND TO REPLACE ANY PART OF THE CONTROL SYSTEM AND ANY GAS CONTROL WHICH HAS BEEN UNDER WATER E DO NOT OPERATE APPLIANCE UNLESS UNIT IS FILLED WITH WATER AN...

Page 19: ...to OFF See page 18 2 Attach a pressure gauge or a manometer to the outlet pressure tap figure 14 and refer to table 3 for correct manifold pressure 3 Fire the heater by turning the gas valve control...

Page 20: ...arp metal objects to clean blocked orifices as they will damage the soft brass orifice Remove any soot or carbon deposits with a rag making sure to remove any lint left on burner by vacuuming again MA...

Page 21: ...ontrol is out of calibration replace control AUTOMATIC GAS SHUTOFF CONTROL The automatic gas shutoff control fig 1 is an automatic device which is wired in series with the gas valve and intermittent i...

Page 22: ...pressure regulator cannot be adjusted to correct pressure with sufficient gas pressure at the valve replace with new gas valve RELIEF VALVE At least twice a year the system relief valves should be ch...

Page 23: ...upper deliming tee Open drain cock and drain heater Install standpipe in lower deliming tee or in tee from which pressure relief valve has been removed 4 Close drain valve 5 Slowly pour 3 gallons of...

Page 24: ...burner shut remain on differential wide tank water temperature off With thermal Tank temperature control Replace balancer pump off defective delay of approx imately 2 minutes System wiring is incorre...

Page 25: ...y plugged into module Is green ground wire firmly attached to mounting screw and GND terminal on module Ensure ground strap is the closest metal to the igniter sensor rod electrode to prevent the spar...

Page 26: ...l on module Is pilot burner ignition cable in good condition not brittle burnt or cracked Ensure ground strap is the closest metal to the igniter sensor rod electrode to prevent the spark from shortin...

Page 27: ...d in good condition not broken or cracked Are the igniter sensor rod in good condition not worn corroded sooted or damaged Replace ignition module Correct the situation by consulting the installation...

Page 28: ...r charges for service removal repair or reinstallation of the water heater or any component part b Shipping delivery handling and administrative charges for forwarding the new heater or replacement pa...

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