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Lochinvar
502, 2072 operation manual Notes
Models:
2072
502
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Specification
Install
8_3Way Valve Cover Connection Diagram
Warranty
Maintenance
Configuration of the cascade
Connecting the air inlet pipe to the unit
Address reported problems
Enter/Reset
Error logging
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Notes
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Contents
Installation & Operation Manual Models: 502 -
CPX-I-ORev B
Save this manual for future reference
DANGER
Contents
Hazard definitions
CAUTION CAUTION NOTICE
Special instructions
Warranty –
Please read before proceeding
Checking equipment –
Prevention of freezing –
Safety information
Owner warning –
Codes
The Copper-fin2 - How it works
Installation & Operation Manual
Models 502 - 752 Front View
Installation & Operation Manual
The Copper-fin2 - How it works
Models 502 - 752 Rear View
Models 992 - 2072 Front View
The Copper-fin2 - How it works... continued
Installation & Operation Manual
Models 992 - 2072 Rear View
Installation & Operation Manual
Ratings
Specifications
NOTICE Notes
Location of unit
1 Determine unit location
Installation & Operation Manual
Indoor clearances from combustible construction
2. Outside Combustion Air, Using Ducts
Installation & Operation Manual
Outdoor pool heater installation
1 Determine unit location
4. Outside Combustion Air - Using Direct Venting
1 Determine unit location continued
Installation & Operation Manual
Figure 1-5_OutsideCombustion Air Through Ducts
Exhaust fans
Installation & Operation Manual
1 Determine unit location
Combustion air filter
BEFORE YOU BEGIN
B C D
2 Venting
Identify your appliance’s vent system
Vent system options
Installation & Operation Manual
2 Venting
Installation & Operation Manual
General information
TABLE - 2A
Venting support
2 Venting
Conventional negative draft venting - see page
Installation & Operation Manual
Negative draft
Vertical vent termination clearances and location
Installation & Operation Manual
Masonry chimney installations
NOTICE
Figure 2-1_VentTermination from Peaked Roof - 10 ft. or Less From Ridge
Installation & Operation Manual
2 Venting
NOTICE
Combustion air inlet piping
Vertical DirectAire venting - see page
Installation & Operation Manual
Length of air inlet pipe
Vertical Rooftop Air Inlet
Installation & Operation Manual
2 Venting
Combined air inlet points
w/Rooftop Combustion Air Inlet
TABLE - 2B
Installation & Operation Manual
Venting of flue products
2 Venting
Sidewall venting - see page
Installation & Operation Manual
Sidewall with fan
Sidewall venting without fan
Installation & Operation Manual
Drain tee installation
Flue outlet piping
W/POWER FAN ASSY
TABLE - 2C
Installation & Operation Manual
2 Venting
Venting of flue products
TABLE - 2D
Installation & Operation Manual
NOTICE
Drain tee installation
Direct venting - see page
Installation & Operation Manual
2 Venting
Masonry chimney installation
TABLE - 2E
Installation & Operation Manual
Horizontal DV venting termination
2 Venting
Installation & Operation Manual
Connecting the air inlet pipe to the unit
Air inlet piping materials
Vertical and sidewall combustion air inlet
Installation & Operation Manual
Multiple sidewall direct vent installations
NOTICE
TABLE - 2F
Outdoor installation - see page
Venting
Installation & Operation Manual
Gas connection
Connecting to gas supply
3 Gas connections
Gas pressure test
3 Gas connections
Combination gas valves
Installation & Operation Manual
Gas train and controls
TABLE - 3D
3 Gas connections continued
Installation & Operation Manual
Checking gas supply pressure
Circulating pump
4 Water connections
Installation & Operation Manual
Figure 4-1_WaterConnections - Models 502 -
Installation & Operation Manual
4 Water connections continued
Heat exchanger
Installation of return and supply sensors
Figure 4-3_HeaterWithin 15 feet of Pool Piping
Installation & Operation Manual
4 Water connections
Figure 4-4_HeaterBeyond 15 feet of Pool Piping
Installation & Operation Manual
4 Water connections continued
POOL RETURN SENSOR SECONDARY LOCATION 3 MIN 110
NOTICE
Installation & Operation Manual
4 Water connections
POOL RETURN SENSOR LOCATION
Figure 4-8_3Way Valve Cover Connection Diagram
Installation & Operation Manual
Automatic bypass valve cover installation
4 Water connections continued
Relief valve
Water flow switch
Pump purge delay
Automatic chlorinator and chemical feeders
Installation & Operation Manual
3-wayautomatic bypass valve wiring
5 Electrical connections
General information
Figure 5-2_LineVoltage Field Wiring Connections
Installation must comply with
Installation & Operation Manual
5 Electrical connections
Louver proving switch
5 Electrical connections continued
Installation & Operation Manual
Pool return sensor - 2-wire
Installation & Operation Manual
Alarm contacts
Wiring of the cascade
Figure 5-5_LowVoltage Field Wiring Connections
Installation & Operation Manual
Pre-startchecklist
6 Startup
Starting the filter system
Check thermostat circuits
Installation & Operation Manual
6 Startup
Check vent and air piping
Installation & Operation Manual
Figure 6-2_OperatingInstructions
6 Startup continued
6 Startup
Installation & Operation Manual
Configuration of the cascade
Set clock
Installation & Operation Manual
7 Operating information
General
Protection features
Run-timeand alarm outputs
Installation & Operation Manual
Pool heater temperature regulation
Service reminder
Cascade
7 Operating information continued
Installation & Operation Manual
Sequence of the cascade
DISPLAY
Sequence of operation
OPERATION
Installation & Operation Manual
ENTER/RESET
Copper-fin2 control module
Installation & Operation Manual
7 Operating information continued
Installer
Installation & Operation Manual
Access modes
7 Operating information
7 Operating information continued
Status display screens
Installation & Operation Manual
Screen #
7 Operating information
Status Display Screens cont’d
Owner maintenance
8 Maintenance Maintenance and annual startup
Service technician
see the following pages for instructions
Inspect appliance area
8 Maintenance
Address reported problems
Inspect appliance interior
Check control settings
8 Maintenance continued
Check all wiring
Check relief valve
Check burner flame
Inspect and clean burner
Perform start-upand checks
Check flue gas passageways
Oiled bearing circulators
Inspect and clean the heat exchanger
Review with owner
8 Maintenance continued
MAIN POWER HARNESS
9 Connection diagram
Installation & Operation Manual
DISPLAY
DANGER
9 Connection diagram continued
Installation & Operation Manual
CONTROLLER
LOW VOLTAGE
10 Ladder diagram
Installation & Operation Manual
120 VAC
10 Ladder diagram continued
Installation & Operation Manual
Notes
Notes
CPX-I-ORev B 7/11
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