Rinnai E60SRN Instructions D'installation Et D'entretien page 71

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Code
Description
Control unit error
1
Anticipation resistance wire not
2
Software error control unit. Software error control unit. Replace the control unit. Remove the E-Prom from
High limit stat open
Control unit error
- T1 flow sensor ground
connection
- T1 flow sensor failure
- controller failure
Signal maximum flow water
temperature exceeded (T
212°F).
Signal maximum return
water temperature exceeded
(T
>212°F).
2
T1 and T2 (swapped).
Controller failure
Solution
When a power stealing room stat device is placed the connection terminal
present
needs to be provided with the special anticipation resistance wire.
the defective control unit and place it onto the new control unit .The controller
will automatically load the program into the new control unit.
Supply temperature too high. Caused by
- presence of air
- possible polluted impeller of the circulation boiler pump
- polluted internal filter
Check de-aerator. Replace when necessary the automatic de-aerator and
restart boiler for de-aerating programm (17min.)
Check water flow over system. Clean when necessary the pump and or
filter. Flush complete system
Check adjustment of balancing valves
Software error control unit. Replace the control unit. Remove the E-Prom from
the defective control unit and place it onto the new control unit .The controller
will automatically load the program into the new control unit.
Check the data in Error mode. Boiler data during error:
1 Error
2 Operational status = 00
3 Flow temp.
4 Return temp.
5 kW burner
6 % pomp
* = variable values
**= x3415=BTU/hr
A temperature of - 36 is displayed at position 3.
Check the wiring and/or measure the resistance of the flow sensor. The
resistance should be approx. 12 kOhm at 77°F.
(See table in Appendix B)
If necessary, replace the flow sensor
- check for resistance on 16 and 17 if using a 3rd part DHW control
- if resistance is present on 16 and 17 with 3rd party control contacts on
control are not fully open
Check actual flow temperature. suddenly increase caused by completely
>
hydraulic shut off of the boiler (filter, pump, thermostat valve, service
1
valve)
Check flow sensor NTC1. measure the resistance value (see Appendix B)
Exchange defective part if necessary. Change control unit when error
persists.
Check actual return temperature. Increase of temperature caused by
external heating source?
Check return sensor NTC 2.
Measure the resistance value (see Appendix B)
Exchange defective part if necessary.
Change control unit when error persists
T2 temperature is measured to be higher than T1. Check resistance value
of T1 and T2 (See Appendix B) and replace T1 or T2.
Replace controller
= 14
= -22
= xx*
= 00**
= xx*
71

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E85srnE110srnE60srpE85srpE110srp

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