Lochinvar CPN0992 High Efficiency Commercial Pool Heaters Instruction Manual

: June 13, 2024
: Lochinvar

Table of Contents

Lochinvar CPN0992 High Efficiency Commercial Pool Heaters
Product Information
Product Usage Instructions
Refined Design Puts More Control and Information at your Fingertips
Proportional Firing
- Automatic Pumped Bypass
Commercial Gas Pool Heater Dimensions & Specifications
Features
- Standard Features
- Smart System™ Features
Optional Equipment
Certifications
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

Lochinvar CPN0992 High Efficiency Commercial Pool Heaters

Product Information

The High Efficiency Commercial Pool Heaters are advanced pool heating systems designed for commercial use. They are available in 8 different models with varying BTU/hr outputs ranging from 500,000 to 2,070,000. These pool heaters feature proportional firing technology, with the ability to reduce the firing rate down to approximately 25% Btu/hr input. They have a low NOx emission level of less than 20 ppm and offer vent flexibility up to 100 feet. The heat exchanger is gasketless and made of copper-finned tubes with glass lined headers. It is built to ASME construction standards and comes with a five-year warranty. The pool heaters also have a space-saving, service-friendly design and multiple venting options.

Product Usage Instructions

Installation: Follow the installation instructions provided in the user manual. Ensure that the pool heater is installed in a suitable location with proper venting options.
Proportional Firing: The pool heater utilizes proportional firing technology to match the heat loss of the pool or spa. This improves operation and reduces component fatigue. The Smart System control can divide the burners into smaller, independent stages, allowing for smoother and longer burn cycles.
Automatic Pumped Bypass: The pool heater is equipped with an automatic pumped bypass as standard equipment. This feature helps regulate water flow and is available in both horizontal and vertical configurations.
Venting Options: Choose the appropriate venting option based on your installation requirements. The pool heater offers sidewall venting, conventional outdoor venting, direct Aire vertical venting with sidewall inlet, powered sidewall venting, and power directAire horizontal venting.
Dimensions & Specifications: Refer to the provided table for the dimensions and specifications of each model. Pay attention to the input MBH, as well as the A, B, C, D, E, F, GH, J, K, and L measurements for proper installation and compatibility.
Water Connections: Depending on the model, the water connections may be 2 flanged or 2-1/2 flanged. Ensure that the water connections are properly installed and sealed.
Maintenance: Regularly inspect and clean the pool heater to ensure optimal performance. Follow the maintenance instructions provided in the user manual for detailed guidance.

For more information and support, visit lochinvar.com.
The Foundation of Lochinvar Becomes Stronger
Copper-finned tube, non-condensing appliances are the foundation of Lochinvar’s success. In 1993, Lochinvar introduced the Copper-Fin², the first horizontal chassis, copper-finned tube pool heater to operate with fan- assisted combustion. Now, the Copper-fin² is even better. Along with high thermal efficiency, gasketless heat exchangers and multiple venting options we have added Lochinvar’s exclusive SMART SYSTEM™ control.
Eight models from 500,000 to 2,070,000 Btu/hr input provide you with exceptional products with a long list of new features in addition to the established features that redefined the industry. The Copper-fin² was the first proportional fired, fan assisted pool heater on the market. Every model features a small footprint for easy passage through a 36” door, low NOx – third party tested to less than 20 PPM, Stack Frames that can put twice the Btu/hr input in the same space and vent diameters up to 8” smaller than conventional atmospheric pool heaters.

Thermal Efficiency

Copper-Fin² pool heaters offer a remarkably high thermal efficiency, dramatically reducing the operating cost of the equipment. Copper-Fin² achieves this efficiency through the combination of an advanced fan assisted combustion system and a gasketless heat exchanger. The heat energy from the combustion process is transferred to the water as it passes through the copper finned tube heat exchanger. The sealed combustion design of the Copper-Fin² eliminates external heat losses, this means the energy dollars heat the water, not the mechanical room.

Gasketless Heat Exchanger

In 1989, Lochinvar was the first manufacturer to offer gasketless copper- finned tube heat exchangers. Our unique gasketless design enhances reliability by eliminating o-rings and gaskets found on other brands. The heat exchanger features glass lined headers and copper-finned tubes with extruded integral fins spaced 7 fins per inch for exceptional heat transfer. The heat exchanger is built to ASME construction standards for 160 psi working pressure and is backed by a five year warranty.

Space Saving, Service Friendly Design

Our enhanced Copper-fin² models offer the same reliable operation in a new service friendly design. The gas inlet, internal controls and Building Management connections have been repositioned to the front of the appliance for easier service and simpler installation. The built-in air filter reduces maintenance and improves performance with a field convertible option to install the air intake on the rear or the right side of the pool heater. In addition, Lochinvar was the first manufacturer to offer factory welded Stack Frames that allow you to put two pool heaters in the space for one.

Multiple Venting Options

The Copper-fin² offers eight venting options to meet the most challenging installation requirements. The Copper-fin² can vent vertically in Category I with double wall “B” vent or horizontally in Category IV with AL29-4C stainless steel vent material. Vent termination can be Rooftop or Sidewall with combustion air drawn naturally from the equipment room or via dedicated air intake piping. And if floor space is limited, the Copper-fin² pool heater can be installed outdoors with an optional Outdoor Vent Cap.

Refined Design Puts More Control and Information at your Fingertips

The most exciting addition to the Copper-fin² is the SMART SYSTEM™ control. The SMART SYSTEM is an advanced, state of the art integrated operating control. We introduced the SMART SYSTEM control in 2005 and it has delivered proven operation in thousands of demanding commercial applications. The control provides the installer, owners and operators with precise temperature control and diagnostic information.
Advanced features include:

2-Line, 16 Character LCD display of Setup, System Status and Diagnostic Data in Words, not codes
Built-in Cascade sequencer controlling up to 8 Pool Heaters
Modbus protocol – optional

Proportional Firing

Proportional firing divides a single manifold of multiple burners into smaller, independent stages.
With up to four stages of individual operation, the Smart System control can reduce the firing rate down to approximately 25% Btu/hr input. This simple but effective design matches the pool heater’s firing capacity to the heat loss of the pool or spa. Full Fire or On/Off combustion systems often fire the entire gas train in short, inefficient bursts. Stage firing delivers the Btu’s required in smoother and longer burn cycles which will improve operation and reduce component fatigue.

Automatic Pumped Bypass

All Copper-fin² pool heaters are equipped with an automatic pumped bypass ensuring proper flow and return water temperatures to the heat exchanger resulting in longer life and trouble free operation.
The automatic pumped bypass is provided as standard equipment in a horizontal configuration. A vertical configuration* is also available offering the flexibility to meet mechanical room space requirements or piping constraints.

Commercial Gas Pool Heater Dimensions & Specifications

Features

Standard Features

85% Thermal Efficiency
Proportional Firing up to 4:1 Turndown
- Hot Surface Ignition
- Low NOx Operation
- Sealed Combustion
- Low Gas Pressure Operation
Vertical & Horizontal Venting
- Category I Venting
- Double Wall “B” Vent Material
- Category IV Venting
- AL29-4C Stainless Steel Vent Material
ASME Copper Finned Tube Heat Exchanger
- ASME Certified, “H” Stamped
- Gasketless design
- 160 psi working pressure
On/Off Switch
Adjustable High Limit w/ Manual Reset
Combustible Floor Rated (0992-2072)
Temperature & Pressure Gauge
Flow Switch
All Bronze Pump
Low Air Pressure Switch
Inlet & Outlet Temperature Sensors
Easy Access Terminal Strips
Downstream Test Cocks
150 psi ASME Temperature & Pressure Relief Valve
1 Year Warranty on Parts (See Warranty for Details)
5 Year Limited Warranty (See Warranty for Details)

Smart System™ Features

SMART SYSTEM™ Operating Control
2 Line/16 Character LCD Display
Built in Cascading Sequencer for up to 8 heaters
Password Security
Low Water Flow Control & Indication
Inlet & Outlet Temperature Readout
Freeze Protection
Service Reminder
Time Clock
Data Logging
- Hours Running
- Ignition Attempts
- Last 10 Lockouts
Pump Control
- Pool Heater Pump
High Voltage Terminal Strip
- 120 VAC / 60 Hertz / 1 Phase Power Supply
- Pump Contacts with Pump Relay
Low Voltage Terminal Strip
- 24 VAC Auxiliary Device Relay Output – Louvers
- Auxiliary Proving Switch Contacts – Louvers
- Alarm on Any Failure Contacts
- Runtime Contacts
- Contacts on Any Failure
- Contacts for Air Louvers
- Unit Enable/Disable Contacts
- 0-10V Rate Contacts
- Pool Sensor Contacts
- Pool Supply Sensor Contacts
- Cascade Contacts