American Water Heater Commercial Light Duty Electric Water Heaters Lowboy Standard and Upright Series User Manual

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Instruction Manual
PRINTED 1215 323289-005
PLACE THESE INSTRUCTIONS ADJACENT TO HEATER AND NOTIFY OWNER TO KEEP FOR FUTURE REFERENCE.
COMMERCIAL LIGHT DUTY ELECTRIC WATER HEATERS 
Thank you for buying this energy efficient water heater. 
We appreciate your confidence in our products.
Lowboy 6/10/15/20 Models Series 102
Lowboy 30/40/50 Models Series 110
Tall 30/40/50/66/80/120 Models Series 110
INSTALLATION - OPERATION - SERVICE - MAINTENANCE  

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SAFE INSTALLATION, USE, AND SERVICE
The proper installation, use and servicing of this water heater is extre\
mely important to your safety and the safety of others.
Many safety-related messages and instructions have been provided in this manual and on your own water heater to warn you and 
others of a potential injury hazard.  Read and obey all safety messages \
and instructions throughout this manual.  It is very important 
that the meaning of each safety message is understood by you and others \
who...

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GENERAL SAFETY INFORMATION
When servicing this unit, verify the power to the unit is turned off pri\
or to opening the control cabinet door.
PRECAUTIONS
DO NOT USE THIS WATER HE ATER IF ANY PART HAS BEEN 
E X P O S E D   T O   F LO O D I N G   O R   W AT E R   D A M A G E .  I m m e d i a t e l y  
call  a  qualified  service  technician  to  inspect  the  water  heater 
and  to  replace  any  part  of  the  control  system  which  has  been 
under water.
If  the  unit  is  exposed  to  the  following,...

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Thank You for purchasing this water heater.  Properly installed 
and maintained, it should give you years of trouble free service.
Abbreviations Found In This Instruction Manual:
• ANSI - American National Standards Institute
•  AHRI - Air-Conditioning, Heating and Refrigeration Institute
•  NEC - National Electrical Code
•  NFPA - National Fire Protection Association
•  UL - Underwriters Laboratory
PREPARING FOR THE INSTALLATION
1. Read the “General Safety Information” section of this manual 
first...

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DIMENSIONS AND CAPACITIES DATA
TABLE 2 - RECOVERY CAPACITIES
Element Wattage 
(Upper/Lower) INPUT 
KW  
U.S. Gallons/Hr and Litres/Hr at TEMPERATURE RISE INDICATED
F° 36F° 40F°54F°60F° 72F° 80F° 90F°100F° 108F°120F°126F°
C° 20C° 22.2C° 30C°33.3C° 40C° 44.4C° 50C°55.5C° 60C°66.6C° 70C°
NON-SIMULTANEOUS /1500 GPH17151110 8 8 76 655
1.5 LPH 64584338 32 29 2623 211918
/2000 GPH23201514 11 10 98 876
2.0 LPH 85775751 43 38 3431 282624
/2500 GPH28251917 14 13 1110 988
2.5 LPH107 967164 53 48 4338 363230...

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APPROVALS
MODEL AND RATING
Lowboy-30/40/50 & Tall-30/40/52/66/80/120Lowboy-6/10/15/20
All models are listed by 
Underwriters Laboratories Inc. 

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FEATURES AND COMPONENTS
FIGURE 2
This page shows typical water heater installations by model designations.
† OVER CURRENT PROTECTION MUST BE SUPPLIED IN WATER HEATER CIRCUIT.  
CONSULT LOCAL CODE OR CURRENT EDITION OF NEC FOR PROPER INSTALLATION.
* INSTALL IN ACCORDANCE WITH ALL LOCAL CODES.
INSTALL VACUUM RELIEF 
IN COLD WATER INLET 
LINE AS REQUIRED BY 
LOCAL CODES.
INSTALL SUITABLE DRAIN PANS UNDER WATER HEATERS 
TO PREVENT DAMAGE DUE TO LEAKAGE. REFER TO WATER 
HEATER LOCATION ON 
PAGE 8.
INSTALL...

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FACTS TO CONSIDER ABOUT THE LOCATION
The  water  heater  should  be  located  as  close  as  possible 
to/or  centralized  to  the  water  piping  system.  The  water 
heater should be located in an area not subject to freezing 
temperatures.
The water heater should be located in an area where leakage 
of  the  tank  or  connections  will  not  result  in  damage  to  the 
area adjacent to the heater or to lower floors of the structure.
When such locations cannot be avoided, a suitable drain pan...

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INSTALLATION
REQUIRED ABILITY
Installation and service of this water heater requires ability equivalent 
to  that  of  a  qualified  installer  or  service  agency  (page  2)  in  the 
field involved. Plumbing and electrical work is required.
GENERAL
The installation must conform with these instructions and the local 
code authority having jurisdiction and the requirements of the power 
c o m p a n y.  I n  t h e  a b s e n c e  o f  l o c a l  c o d e s ,  t h e  i n s t a l l a t i o n  m u s t  c o...

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paragraph.  The  new  valve  must  be  marked  with  a  maximum  set 
pressure  not  to  exceed  the  marked  hydrostatic  working  pressure 
of the water heater (15 0 psi = 1,035 kPa) and a discharge c apacit y 
not less than the water heater Btu/hr or KW input rate as shown on 
the water heater’s model rating plate.
For safe operation of the water heater, the temperature and pressure 
relief  valve  must  not  be  removed  from  its  designated  opening  nor 
plugged.  The  temperature-pressure...