Lochinvar
1
service manual
Sync display
Troubleshooting
Check flame signal
Internal Fault
Check ignition ground wiring
Address reported problems
Outdoor Reset
Setup Screen
Test procedure
Gas Valve Adjustment
Checking temperature sensors
Page 6
Service Manual
1
Service
The SYNC display
6
Page 5
Page 7
Image 6
Page 5
Page 7
Contents
Models 1.0, 1.3,
Contents
Handling ceramic fiber materials
Niosh stated First Aid
Service
Maintenance
Troubleshooting
Service
Near boiler piping
Sync display
Control inputs
Board
Secondary Smart Touch Control Module Primary
Control outputs
How the control module operates
General Operation
How the boiler operates
Sequence of operation
Sequence of operation
Sequence of operation space heating and HW
This table lists the parameters and where to access them
Parameter table
Outdoor Reset
Viewable and changeable control parameters
Status Screen
Service
Details Screen
Service
Main Screen
Setup Screen
Service/Setup Parameters Screen
Service
Set Point Parameters Screen
Outdoor Reset Parameters Screen
Service
Night Setback Parameters Screen
Cascade Parameters Screen
Cascade Operation
Pumps Parameters Screen
10Vdc BMS Parameters Screen
10Vdc Operation
Service
Cascade Screen
Service
Temps Screen
Burners Screen
Graph Select Screen
History Screen
Service Mode Screen
Maintenance Maintenance and annual startup
Inspect boiler area
Address reported problems
Clean condensate trap
Inspect boiler interior
Flue vent system and air piping
Check water system
Check expansion tank Check boiler relief valve
Check control settings
Check ignition ground wiring
Check all boiler wiring
Inspect ignition and flame sense electrodes
Check flame signal
Cleaning boiler heat exchanger
Review with owner
Test procedure
Test low water flow conditions
Troubleshooting
Alarm Screen
Before troubleshooting
Check the following
Check control module fuses
Operation
No Display
No Burner
Unit Does
Checking temperature sensors
Temperature Resistance
Operation Boiler Pump
Noisy
No Pump
System Pump
Drain Blocked
Flow Switch
Condensate
Flame out
Light cont’d
Flame Lost
While Running
Troubleshooting
Temp SW
Automatic Reset
High Limit / HEX
Blower RPM’s
Sensor Open
Louver Proving Switch
Too High
Sensor Shorted
Low
Resets Try Later
Air Flow Too
Flap Valve
Writing to
Internal Fault
No Error Stored
Memos
Or Obstruction
Combustion Analysis Procedure
Gas Valve Adjustment
Gas Supply Pressure
Gas valve adjustment procedure
Model
Models 1.3
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