BOCK OT299 Installation And Operation Instruction Manual

BOCK OT299 Installation And Operation Instruction Manual

High efficiency commercial gas

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To the Installer:
Please attach these instructions
next to the water heater.
Installation and Operation Instructions Manual
WARNING: If the information in these instructions is 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.
WARNING
Improper installation, adjustment, alteration,
service or maintenance can cause serious injury
or property damage. Refer to this manual. For
assistance or additional information, consult a
qualified installer or service agency.
WARNING
Install in accordance with all local codes. In the
absence of local codes, refer to NFPA 54 or CSA
B149.1.
CAUTION
The recommended temperature for normal
residential use is 120°F. The dial on the aquastat
does not always reflect the out-coming water
temperature and it could occasionally exceed
120°F. Variation in out-coming temperature could
be based on factors including but not limited to
usage patterns and type of installation.
WARNING
Hotter water increases the risk of scald injury.
Before adjusting the water temperature setting,
read this instruction manual. Temperatures at
which injury occurs vary with the person's age
and the length of exposure. The slower reaction
time of children, elderly or physically or mentally
challenged persons increases the scalding hazard
to them. It is recommended that lower water
temperatures be used where these exposure hazards
exist. Households with small children or invalids
may require a temperature setting less than 120°F
to prevent accidental contact with hot water.
To produce less than 120°F, use point-of-use
temperature limiting devices.
23435 EN
To the Consumer:
High Efficiency Commercial Gas Water Heater
Models: OT200, OT250, OT299
Warranty, Registration Card and Parts List are included.
Owner: Please remember to return the Registration Card!
– Installation and service must be performed by a
Please read these and all component
instructions and keep for future reference.
• Immediately call your gas supplier from a neigh-
bor's phone. Follow the gas supplier's instructions.
• If you cannot reach your gas supplier, call the fire
department.
qualified installer, service agency or the gas supplier.
If higher water temperature is needed in part of
the water system, automatic temperature limiting
devices must be used on all lines to water taps.
WARNING
Water heater blankets may restrict air flow to the
water heater and cause fire, asphyxiation, personal
injury or death.
THIS MANUAL HAS BEEN PREPARED TO
ACQUAINT YOU WITH THE INSTALLATION,
OPERATION, AND MAINTENANCE OF YOUR
WATER HEATER AND TO PROVIDE IMPORTANT
SAFETY INFORMATION.
Read all instructions thoroughly before attempting
installation or operation of your water heater. Keep
these instructions for future reference.
Local plumbing and electrical codes must be
followed in the installation of this water heater.
In the absence of a local code use the UNIFORM
PLUMBING CODE and the NFPA Code. Local codes
may supersede instructions in this installation
manual.
These instructions are a guide for the correct
installation of the water heater. The manufacturer
will not be liable for damages caused by failure to
comply with the installation and operating instruc-
tions outlined on the following pages.
DO NOT use this appliance if any part has been
under water. Immediately call 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.
FAILURE TO FOLLOW THESE INSTRUCTIONS OR
ALL APPLICABLE BUILDING CODES
AND REGULATIONS VOIDS THE WARRANTY ON
THIS WATER HEATER.
Rev4 4/21

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Summarization of Contents

SECTION II: GENERAL INFORMATION
WHEN YOU RECEIVE YOUR NEW WATER HEATER
Initial inspection and handling of the new water heater.
WATER TREATMENT/FILTRATION
Importance of water quality and potential treatment for heater longevity.
TEMPERATURE CONTROL
Explanation of how temperature is regulated and safety limits.
ANODE RODS
Details on the powered anode system for corrosion protection.
TEMPERATURE AND PRESSURE RELIEF VALVE (T&P)
Requirements and installation for the T&P safety valve.
SECTION III: PRE-INSTALLATION
LOCATION
Guidelines for choosing an appropriate installation location for safety and function.
GAS SUPPLY LINE
Requirements for sizing and pressure for the gas supply line.
COMBUSTION AND VENTILATION AIR
Critical information on air supply for safe and efficient combustion.
SECTION IV: INSTALLATION
VENT & COMBUSTION AIR INTAKE
Instructions for installing the vent and air intake system for safe operation.
Horizontal Venting
Guidelines for direct and power vent horizontal termination through a sidewall.
Vertical Venting
Guidelines for direct and power vent vertical termination through a roof.
Assembling Vent and Air Intake Joints
Proper methods for connecting vent and air intake pipes securely.
WATER CONNECTIONS
Guidelines for connecting potable water lines, including safety valves.
GASCONNECTIONS
Procedures for connecting the gas supply, including safety precautions.
WIRING
Electrical connection requirements and safety guidelines for the water heater.
SECTION V: OPERATION
FOR YOUR SAFETY READ BEFORE OPERATING
Critical safety warnings and procedures before initial operation.
OPERATING INSTRUCTIONS
Step-by-step guide for putting the water heater into operation.
ADJUSTING THE CONTROLS
How to set and adjust the temperature controls for desired output.
MEASURING POINT-OF-USE WATER TEMPERATURE
Procedure for verifying water temperature at the tap and system performance.
SECTION VI: MAINTENANCE
Water Piping and T&P Relief Valve Checks
Routine checks for leaks and proper operation of plumbing and safety valve.
Powered Anode System Check
Information on checking the powered anode system status and its importance.
Tank Flushing and Combustion System Checks
Procedures for draining the tank and verifying combustion system parameters.
Venting System and Burner Inspection
Annual inspection of vent system and periodic burner inspection for blockages.
SECTION VII: TROUBLESHOOTING
General Troubleshooting and Error Codes
Guide to common problems, lockout, and blocking error codes.
Servicing Ignition Components
Procedures for diagnosing and servicing flame rod and ignitor.
Installer Menu Diagnostics
Accessing system diagnostics, fan speeds, flame signal, and error history.
SECTION VIII: PARTS LIST
optiTHERM Main Parts Identification
Visual identification of main water heater components and their part numbers.
Control Panel and Burner Assembly Parts
Detailed part lists for the control panel and burner assembly.
SECTION IX: WARRANTY
Warranty Coverage Details
Information on what the limited warranty covers for parts and labor.
Obtaining Service and Voiding Warranty
Procedures for warranty claims and actions that will void the warranty.
State Law and Limitations
Explanation of how state laws affect warranty terms and liabilities.

Table of Contents