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12 

INSTALLATION

INSTALLATION

REQUIRED ABILITY

Installation and service of this water heater requires ability equivalent 

to that of a qualified installer or service agency in the field involved.  

See 

Important Definitions 

(page  3).  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 

company. In the absence of local codes, the installation must comply 

with the latest editions of the 

National Electrical Code, NFPA 70

 or the 

Canadian Electrical Code CSA C22.1

. The 

National Electrical Code

 may be 

ordered from: National Fire Protection Association, 1 Batterymarch 

Park, Quincy, MA 02269. The 

Canadian Electrical Code

 is available from 

the  Canadian  Standards Association,  8501  East  Pleasant  Valley 

Road, Cleveland, OH 44131.

Do NOT

 test electrical system before heater is filled with water, follow 

 

the 

START UP

 procedure in the 

OPERATION

 section of this manual.

The principal components of the heater are identified in the 

Features 

and Components

 (page 8).

Water temperature over 125°F (52°C) 

can cause severe burns instantly 

resulting in severe injury or death.
Children, the elderly and the 

physically or mentally disabled are at 

highest risk for scald injury.
Feel water before bathing or shower-

ing.
Temperature limiting devices such as 

thermostatic point-of-use mixing 

valves must be installed when 

required by codes and to ensure safe 

temperatures at fixtures.

MIXING VALVE USAGE 

Water heaters are intended to produce hot water. Water heated to 

a temperature which will satisfy space heating, clothes washing, 

dish washing, cleaning and other sanitizing needs can scald and 

permanently injure you upon contact. Some people are more likely 

to be permanently injured by hot water than others. These include 

the  elderly,  children,  the  infirm,  or  physically/developmentally 

disabled. If anyone using hot water in your home fits into one of these 

groups or if there is a local code or state law requiring a maximum 

water temperature at the hot water tap, then you must take special 

precautions. In addition to using the lowest possible temperature 

setting  that  satisfies  your  hot  water  needs,  a  means  such  as  a 

MIXING VALVE, should be used at the hot water taps used by these 

people or at the water heater.  

MIXING VALVES

 for reducing point of use temperature are available 

and are to be set at a maximum of 125 degree F. Consult a qualified 

installer or service agency. Follow all manufacturer’s Instructions for 

installation of these valves. Before changing the factory setting on the 

thermostat, read the “Temperature Regulation” section in this manual.

Toxic Chemical Hazard

WARNING

● 

Do not connect to non-potable water system.

CONTAMINATED WATER

This water heater shall not be connected to any heating system(s) 

or component(s) used with a non-potable water heating appliance.

Toxic chemicals, such as those used for boiler treatment shall not 

be introduced into this system.

CIRCULATING PUMP

Field installed circulating pumps should be of all bronze construction.

INSULATION BLANKETS

Insulation blankets are available to the general public for external 

use on electric water heaters but are not necessary with this product. 

The purpose of an insulation blanket is to reduce the standby heat 

loss encountered with storage tank heaters.

Should  you  choose  to  apply  an  insulation  blanket  to  this  heater, 

you should follow these instructions below. Failure to follow these 

instructions can result in fire, serious personal injury, or death.

• 

Do not cover the temperature and pressure relief (T & P) valve 

with an insulation blanket.

• 

Do not cover the instruction manual. Keep it on the side of the 

water heater or nearby for future reference.

• 

Do obtain new warning and instruction labels for placement on 

the blanket directly over the existing labels.

TEMPERATURE-PRESSURE RELIEF VALVE

Explosion Hazard

Temperature-Pressure Relief Valve

must comply with 

ANSI Z21.22-

CSA 4.4

 and 

ASME

 code.

Properly sized temperature-

pressure relief valve must be

installed in opening provided.

Can result in overheating and

excessive tank pressure.

Can cause serious injury or death.

This water heater is provided with a properly rated/sized and certified 

combination temperature - pressure relief valve by the manufacturer. 

The valve is certified by a nationally recognized testing laboratory 

that maintains periodic inspection of production of listed equipment 

of materials as meeting the requirements for 

Relief Valves for Hot Water 

Supply Systems, ANSI Z21.22 • CSA 4.4

, and the code requirements of 

ASME

.

Printed on 7/25/2022 7:17 AM CT

Summary of Contents for Compact 10

Page 1: ...Thank you for buying this energy efficient water heater We appreciate your confidence in our products Read and understand this instruction manual and the safety messages herein before installing oper...

Page 2: ...equired Ability 12 General 12 Contaminated Water 12 Circulating Pump 12 Insulation Blankets 12 Temperature Pressure Relief Valve 12 Closed Water Systems 13 Thermal Expansion 13 Electrical 13 START UP...

Page 3: ...is manual near the water heater WARNING indicates a potentially hazardous situation which if not avoided could result in injury or death CAUTION indicates a potentially hazardous situation which if no...

Page 4: ...ank temperature to a higher setting without increasing risk of scalds A higher temperature setting allows the tank to provide much more hot water and can help provide proper water temperatures for app...

Page 5: ...bathing or shower ing Temperature limiting devices such as thermostatic point of use mixing valves must be installed when required by codes and to ensure safe temperatures at fixtures Explosion Hazar...

Page 6: ...azard Hot water discharge Keep clear of Temperature Pressure Relief Valve discharge outlet Avoid damage Property Damage Hazard Inspection and replacement of anode rod required Printed on 7 25 2022 7 1...

Page 7: ...ing in water When replacing fuses always use the correct size for the circuit See Wiring Diagram page 23 The model and rating plate on page 9 interprets certain markings into useful information Both o...

Page 8: ...kage See Locating the Water Heater page 10 Install thermal expansion tank if check valve or pressure re ducing valve is used in supply line Install vacuum relief in cold water inlet line as required b...

Page 9: ...OUS OPERATION 3000 3000 GPH 68 61 45 41 34 30 27 24 23 20 19 6 LPH 256 230 170 153 128 115 102 92 85 77 73 4000 4000 GPH 90 81 60 54 45 41 36 32 30 27 26 8 LPH 341 307 227 205 170 153 136 123 114 102...

Page 10: ...5 Lowboy 40 2 38 144 32 00 813 23 00 584 24 00 610 8 00 203 118 53 5 Lowboy 50 2 51 193 36 00 914 26 50 673 25 00 635 8 00 203 172 78 0 Tall 30 2 40 151 49 75 1264 20 50 521 53 25 1353 8 00 203 118 53...

Page 11: ...the drain pan that turn off the water supply to the entire home when water is detected in the drain pan Water supply shut off devices that activate based on the water pressure differential between the...

Page 12: ...means such as a MIXING VALVE should be used at the hot water taps used by these people or at the water heater MIXING VALVES for reducing point of use temperature are available and are to be set at a...

Page 13: ...installed when required by codes and to ensure safe temperatures at fixtures The temperature pressure relief valve must be manually operated at least once a year Caution should be taken to ensure tha...

Page 14: ...terminal block to L2 L3 is not used See Wiring Diagram page 23 The heater now in single phase non simultaneous operation may be field converted to single phase simultaneous operation by moving the re...

Page 15: ...ater inlet pipe valve allowing the heater and piping to be filled 5 Close the hot water faucet as water starts to flow The heater is now ready for STARTUP and TEMPERATURE REGULATION INITIAL START UP T...

Page 16: ...relationship for normal adult skin The thermostats on your water heater have a linear relationship between degrees of angular rotation and the corresponding change in temperature Thus rotating the te...

Page 17: ...e junction box door for upper thermostat of dual element water heater only and or remove the lower thermostat access panel Do not remove the plastic personnel protectors covering the thermostats The t...

Page 18: ...water faucet opened in Step 3 9 If the water heater is going to be shut down for an extended period the drain valve should be left open FLUSHING THE WATER HEATER STORAGE TANK 1 Turn off the electrica...

Page 19: ...the anode 1 Turn off the power supply to the water heater 2 Shut off the water supply and open a nearby hot water faucet to depressurize the water tank 3 Drain approximately 5 gallons of water from t...

Page 20: ...tanks must be installed on all closed water systems DO NOT PLUG THE TEMPERATURE PRESSURE RELIEF VALVE OPENING THIS CAN CAUSE PROPERTY DAMAGE SERIOUS INJURY OR DEATH Explosion Hazard Temperature Press...

Page 21: ...ccumulations on the elements causes sizzling and hissing noises when the heater is operating The sounds are normal however the tank bottom and elements should be cleaned See the Maintenance section of...

Page 22: ...in humid weather or pipe connections may be leaking 3 The anode rod fitting may be leaking 4 The temperature pressure relief valve may be leaking at the tank fitting 5 Small amounts of water from tem...

Page 23: ...M A 8 CIRCUIT FOR DUAL ELEMENT HEATER C 2 CIRCUIT FOR SINGLE ELEMENT HEATERS EQUIPPED WITH HIGH LIMIT CONTROL FACTORY WIRED FIELD WIRING WHITE FOR 120V 277V Figure 8 A8 and C2 Circuit Wiring Diagrams...

Page 24: ...24 www hotwater com 500 Tennessee Waltz Parkway Ashland City TN 37015 Tech Support 800 527 1953 Parts 800 433 2545 Copyright 2022 All rights reserved Printed on 7 25 2022 7 17 AM CT...

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