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Lochinvar
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Water Heater
Lochinvar
1, 1.3, 1.5 service manual
- page 5
1
5
52
52
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52 pages, 6.29 Mb
1
Service
The Armor X2 display
5
Service Manual
Contents
Main
Service Manual
Models: 1.0, 1.3, and 1.5
Hazard definitions
DANGER WARNING CAUTION CAUTION NOTICE
Contents
Please read before proceeding
Please read before proceeding
Handling ceramic fiber materials
NIOSH stated First Aid.
When servicing water heater
Water heater operation
What is in this manual?
Service
The Armor X2 water heater display
Control module inputs
Control module outputs
Page
Control inputs
SECONDARY SMART CONTROL MODULE PRIMARY SMART CONTROL MODULE
Page
General Operation
How the water heater operates
Sequence of operation
Access modes
Sequence of operation
Parameter table
Table 1B This table lists the parameters and where to access them
SERVICE / SETUP
NIGHT
Table 1B (continued from previous page) This table lists the parameters and where to access them
CASCADE
SETBACK
BMS
Viewable and changeable control parameters
Status Screen:
Page
Details Screen:
Page
Main Screen:
Setup Screen:
Service/Setup Parameters Screen:
Page
Set Point Parameters Screen:
Night Setback Parameters Screen:
Cascade Parameters Screen:
0 - 10Vdc BMS Parameters Screen:
Page
Cascade Screen:
Page
Temps Screen:
Burners Screen:
Graph Select Screen:
History Screen:
Service Mode Screen:
Maintenance and annual startup
Service technician
Monthly
Daily
2
Flue vent system and air piping
Check water system
Check expansion tank
Check water heater relief valve
Inspect ignition and flame sense electrodes
2
Check flame signal
Review with owner
Cleaning water heater heat exchanger
Check Delta T
Water Heater Pump Applications
Oiled bearing circulators
Alarm Screen:
Before troubleshooting:
Check the following:
Check control module fuses
FAULT CAUSE CORRECTIVE ACTION
Checking temperature sensors
Table 3D Troubleshooting Chart - Noisy System
FAULT CAUSE CORRECTIVE ACTION
Noisy Operation
No Pump Operation - HW Pump
Relief Valve Opening
Table 3E Troubleshooting Chart - Fault Messages Displayed on Water Heater Interface
Flow Switch/ LWCO
Condensate Drain Blocked
Flame out of Sequence
Gas Valve / Connection
Burner Did Not Light (contd)
Flame Lost While Running
Flame Lost While Running (contd)
Manual Reset High Limit
Automatic Reset High Limit / HEX- Temp SW
Blower RPMs Too Low
Blower RPMs Too High
Sensor Open
Sensor Shorted
Flue Sensor Open / Removed
Flue Sensor Shorted
Air Flow Too Low
Flap Valve Stuck Open
Too Many Resets - Try Later
Voltage Too Low
Internal Fault
Writing to Memos
CRC Parameters
No Error Stored
Flue Temp Shutdown
Combustion Analysis Procedure
Gas valve adjustment procedure
Model 1.0
Models 1.3 - 1.5