OERTLI AD 221 Technische Information Seite 3

Service documentation
technico-commerciale
F - 67580 MERTzwIllER
P5259 JgK
1. Software evolution of interface PCB's
AD 221 and AD 222 from version 10.1 to 10.2
New pump management in order to solve random errors of non switching of the pump in
heating when changing in summer or night mode on RS 00 or RS 00 R.
2. Software evolution of main PCB
(Safety PCB S100068) to version 1.4
• To parameter 24 has been added the choice 4.
when parameter 24 is setted on 4, the dry contact on
connector X7 (terminals  and 3) closes when heating
request and opens when heating request disappears,
and can so be used to pilot an external pump.
warning : an auxiliairy relay must be used for EMC
reasons.
• when parameter 24 is setted on 3, the external gas
valve is from now on also operated during the start
cycle.
• On boilers for heating only the 3-way-valve is setted in
heating position when the boiler is in standby.
• The strap between terminals 3 and 4 of connector X9
is removed as well as the blocking function associated
to that strap. The terminals 3 and 4 are intended for
connecting a domestic hot water sensor or thermostat
on GMR 024 Condens with an independent hot water
calorifier.
As result the diagram 0850lTFRw7H04 is modified
and moves to index c (please see page 4).
Cf ER07//026+Rem9200
Modifications : Software of interfaces and main PCB's + diagram
AD 22 PCB
Ref 2000477
N° ITOE0067
3
T
Technical Information
Rubric F
The regulations
of GMR 1000 Condens
Date : 9/07/2007
AD 222 PCB
Réf 20006562