What Is In This Manual - Lochinvar Power-fin 502 Service Manual

What is in this manual?

Service
The Power-fin display
• Display panel readout, buttons and their functions
Control module inputs
• Control module inputs and options
Control module outputs
• Control module outputs and options
General
• How the appliance operates
• How the control module operates
• Access modes -- user and installer
• Sequence of operation -- Domestic Hot Water
(DHW)/space heating
Control panel menu access
• Accessing programming mode and locating menus
(See separate guides covering the PC and pocket PC
interfaces)
Control panel parameter access
• Accessing and changing parameters from the display panel
Quick start information -- parameter table
• An index of available adjustments and readouts, where to
access them and where to find detailed information.
Power-fin operation
• A: General
• B: Temperature Setting
• C: Data Logging
• D: Functions
• E: DHW Settings
• F: Outdoor Air Reset Curve
• G: Anti-cycling
• H: Control Modes
• I: Cascade
• J: Building Management System (BMS)
• K: Circulation Pumps
• L: Service Notification
4
Maintenance
• Service and maintenance schedules
• Address reported problems
• Inspect appliance area and appliance interior
• Clean condensate trap
• Check all piping for leaks
• Flue vent system and air piping
• Check water system
• Check expansion tank
• Check control settings
• Check igniter
• Check all appliance wiring
• Check flue gas passageways
• Flame inspection
• Inspect and clean burner
• General maintenance
• Checking manifold gas pressure
• Combustion analysis procedure
• Gas valve adjustment procedure
• Cleaning heat exchanger
• Review with owner
Troubleshooting
• Troubleshooting table - No display
• Checking temperature sensors
• Troubleshooting table - Noisy system
• Troubleshooting table - Fault messages displayed on
Operator Interface
Service Manual