OERTLI GMR 6160 Technical Information

Wall-hung gas condensing boilers, cascade connection

Technical Information

GMR 6160 Condens

Wall-hung gas condensing boilers

Cascade connection

Purpose : points to check

Observe the following points for the cascade connection of GMR 6160 boilers.

Remark: a boiler cascade includes :

A master boiler: GMR 6160 with OEtroCom-3 control panel,

One or more GMR 6160 follower boiler(s) with OEtroCom-3 or OEtroCom-2 control

panel.

Check the following points:

• Circuit boards SCB-10 (OEtroCom-3) must be in version 1.04 or higher.

• All SCB-10 circuit boards must be at the same version.

• Burner management circuit boards CU-GH06 must be in version 2.1 or higher.

• All CU-GH06 circuit boards must be at the same version.

1. Switch off the power supply,

2. Open the control panel to get access the circuit boards,

3. Remove the 2 jumpers from each of the CB-01 circuit boards in the cascade.

QM- IT2705

N° ITOE0242-en

1/4

28/05/2021

ITOE0242-en

Table of Contents

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Page 1 N° ITOE0242-en 28/05/2021 Purpose : points to check Observe the following points for the cascade connection of GMR 6160 boilers. Remark: a boiler cascade includes : A master boiler: GMR 6160 with OEtroCom-3 control panel, One or more GMR 6160 follower boiler(s) with OEtroCom-3 or OEtroCom-2 control panel.
Page 2 Connect the BUS cables 1. Connect the BUS cables B between the connector X5 of the master boiler A and the connectors X9 / X10 of the CB-01 boards of the follower boilers, 2. Fit the terminating connector C to the connector X4 of the master boiler A, 3.
Page 3 6. Check the software versions To check the software version of the boards: Information a) Go to the menu on the control panel  On OEtroCom-3 control panel: - Access the menus by pressing the key - Select Information menu with the rotary button - Select CU-GH06 board menu...
Page 4  All CU-GH06 boards must be at the same version (at least 2.1 or higher). Appliance concerned Reference in spare parts Description - GMR 6160 OEtroCom-3 7718238 CU-GH06 version 2.1 - GMR 6160 OEtroCom-2 7774497 SCB-10_E version 1.04 - GMR 6160 OEtroCom-3 Set of boards SCB-10 SW1.04 + CU-...