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General| Model | MiniMax CH 250 |
|---|---|
| Category | Swimming Pool Heater |
| Fuel Type | Natural Gas or Propane |
| BTU Input | 250, 000 BTU/hr |
| Heat Exchanger Material | Copper |
| Efficiency Rating | 82% |
| Minimum Flow Rate | 30 GPM |
| Maximum Flow Rate | 120 GPM |
| Warranty | 1 year limited warranty |
Key advisories for installers and operators regarding warranty and proper usage.
Installation must comply with national and local electrical and fuel gas codes.
Details on the limited factory warranty and registration card.
How to identify the heater model and serial number from its rating plate.
Crucial safety guidelines for operating the pool and spa heater.
Step-by-step guide for safely lighting the pilot and operating the heater.
Procedure for shutting off the gas supply to the heater.
Explanation of the dual thermostat system for pool and spa temperature settings.
How to use the mechanical stop to set and lock maximum temperature.
Guide to setting and adjusting thermostat knobs for desired temperatures.
Function of the Pool/Off/Spa switch for controlling heating operations.
Recommended checks and tasks for regular heater maintenance.
Advice on optimizing heater efficiency and reducing energy consumption.
Specific operational considerations for seasonal use.
Guidelines for operating or storing the heater during winter.
Importance of proper water chemistry for heater longevity and performance.
Role of disinfectants in maintaining pool water sanitation.
Understanding and maintaining disinfectant levels in pool water.
Explanation of pH, its importance, and how to measure it.
Understanding total alkalinity and its impact on pH control.
Technical specifications and dimensional data for different installation types.
Dimensional requirements for outdoor installations without a vent kit.
Dimensional requirements for outdoor installations using a vent kit.
Dimensional requirements for indoor or sheltered installations.
When and how to install a manual bypass for high flow rates.
Proper placement and use of valves for isolation and preventing back siphon.
Considerations for installing the heater below the pool water level.
Requirements and installation of a flow switch for specific installation heights.
Procedure for reversing water connections without removing the heat exchanger.
How factory insulation protects high limits when reversing heads.
Guidelines for installing gas lines, including pipe sizing and leak testing.
Required inlet and manifold gas pressures for natural gas and propane.
Requirements for outdoor heater placement and clearances.
Steps for installing the outdoor vent cap kit.
Steps for installing the draft hood and adapter for indoor units.
Diagram illustrating millivolt wiring for the heater.
Detailed millivolt wiring schematic for Honeywell electronic control.
Step-by-step instructions for operating the electronic ignition heater.
Procedure for safely shutting off the gas to the appliance.
Step-by-step instructions for operating the electronic ignition heater.
Procedure for safely shutting off the gas to the appliance.
Explanation of dual thermostat system for electronic/millivolt models.
How to use the mechanical stop to set and lock maximum temperature.
Guide to setting and adjusting thermostat knobs for desired temperatures.
Function of the Pool/Off/Spa switch for controlling heating operations.
Explanation of the status indicator lights on the control panel.
Wiring diagram for the transformer in IID electronic units.
Wiring configuration for a 3-wire remote control system.
Wiring configuration for a 2-wire remote control system.
