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Describes the components included with the water heater unit.
Identifies the location of the serial number plate for service.
Defines signal words and their associated hazard levels.
Critical safety precautions and warnings for unit installation.
Key performance data, dimensions, and operational parameters.
Specifies minimum clearances for safe installation and operation.
Guidelines for choosing an appropriate indoor location.
Guidelines for choosing an appropriate outdoor location.
Instructions for securely mounting the water heater to a wall.
Step-by-step guide for connecting the gas supply.
Specifies acceptable gas pressure ranges for operation.
Guidance on sizing the gas supply pipe correctly.
Installation of safety and maintenance components for gas piping.
Overview of the venting system installation process.
Details on configuring the direct venting system.
Details on configuring the power venting system.
Guidelines for sizing and determining length of vent pipes.
Safety clearances for vent terminal locations.
Approved materials for safe exhaust gas venting.
Step-by-step guide for connecting water lines.
Instructions for connecting the hot water outlet.
Instructions for connecting the cold water inlet.
Installation of the condensate drain line for operation.
System configuration options for external hot water recirculation.
Guidelines for complying with electrical installation codes.
Proper wiring, grounding, and polarity for safe connection.
Context and requirements for CO2 level adjustments.
Detailed steps for adjusting CO2 levels for optimal combustion.
Overview of requirements for converting fuel type.
Step-by-step guide for converting the unit to propane.
Overview of the unit's control interface and display.
Instructions for powering the unit on and off.
Procedure for setting the desired hot water output temperature.
Features for setting up passcodes and preventing unauthorized access.
Accessing additional system information and features.
Overview of benefits and setup for multiple unit configurations.
Steps required to connect multiple water heaters together.
Procedure for cleaning the water inlet strainer.
Instructions for safely draining the water heater tank.
Steps to refill the system after draining or maintenance.
Visual representation of the unit's operational logic.
Detailed electrical schematics for all unit models.
Guidance for diagnosing and resolving common unit issues.
List and identification of electrical replacement parts.
List and identification of water line related parts.
List and identification of blower and gas valve components.
List and identification of exhaust and air intake parts.
List of other available service parts and kits.
Specific installation requirements for Massachusetts.
Details on warranty coverage, terms, and limitations.
Instructions for registering the product warranty.
General| Model | iQ251 |
|---|---|
| Category | Water Heater |
| Warranty | 10 years |
| Fuel Type | Natural Gas |
| Energy Efficiency | 0.96 UEF |
| Energy Factor | 0.96 UEF |
