58
Page
240 (T-H3J), 340 (T-H3S) and 540 (T-H3) models Service Manial
Ver. 1.00
CONFIDENTIAL
12. Controls and settings
12-1. Diagnosis using the temperature controller and temperature remote controller..........
59
12-2.
Verifying functionality of computer board
......................................................................
63
12-3. Displaying error code history, Clearing error code history memory, and Display
patterns for error codes...................................................................................................
64
12-4. Clearing the “101” and “991” error code........................................................................
65
12-5. AFR rod function..............................................................................................................
66
12-6. DIPswitch settings............................................................................................................
67
12-7. Assigning unit numbers in the Easy-link system (Only 540 (T-H3) models).....................
70
12-8. (A) ON/OFF conditions: Overview....................................................................................
71
12-8. (B) ON/OFF conditions: BTU requirements......................................................................
72
12-9. Multi-unit system ON/OFF conditions (Only 540 (T-H3) models)....................................
73
12-10.
Operation time for unit rotation (Only 540 (T-H3) models)............................................
74
12-12.
Easy-Link connections with previous models..................................................................
76
12-13. High-Altitude Region Support Functions ........................................................................
79
12-14. Adjusting manifold gas pressure......................................................................................
83
12-15. Manually adjusting the fan motor speed
(Only 540 (T-H3) models)...............................
85
12-16. Freeze protection system.................................................................................................
86
12-17. Draining the unit and cleaning the inlet water filter.......................................................
88
12-11. Individual unit operation in easy-link system while parent unit is under
abnormal conditions (Individual operation mode) (Only 540 (T-H3) models)................
75