Buderus Logamatic R2107 User manual

Technical service bulletin
Logamatic R2107 Quick Start Guide
Bulletin Number: TBG-21 | Model: Logamatic R2107 Controls
Introduction
This bulletin is intended to address basic applications for the
Logamatic R2107. For more advanced applications and
functionality, please refer to the Logamatic R2107 Operating
Instructions, Installation and Service Instructions and Applications
Manual.
Procedure - Level 1 - Basic Settings
• To set day:
Hold 1...7 and turn dial until proper day is selected.
• To set time:
Hold and turn dial clockwise until proper time
is selected.
• To set Warm Weather Shutdown (WWSD) temp:
Hold and turn dial to appropriate
temperature.
• For 24 hour Domestic Hot Water:
Hold and turn dial until "DHW PROD" appears.
Release and then press . Then re-hold and
turn the dial back to “CIRCUIT 1”.
When using hydro-air systems, you must also change
day/night temp.
• To change day temp:
Hold and turn dial clockwise to 86° F.
• To change night temp:
Push then hold and turn dial clockwise
to 84° F.
Procedure - Level 2 - Programming Settings
Hold together 1...7 , , then release.
Turn dial ve clicks clockwise. This brings you to
“BLR TEMP”.
Then push and turn the dial appropriately to
reach the settings below:
FREEZE TEMP - 41°F (default)
BUILDING RESP - Change from default (2) to (1) for wood frame
construction
PUMP LOGIC - 104° F (default)
MAX TEMP - Must change to 194°F
• To change BUILDING RESP:
While on the BUILDING RESP setting, hold and turn
dial counter-clockwise.
• To change MAX TEMP:
While on the MAX TEMP setting, hold and turn
dial clockwise to 194° F.
Push then turn dial clockwise once to
“CIRCUIT 1”.
Then push and turn the dial appropriately to
reach the following settings on the next page:

Bulletin Number: TBG-21 | Logamatic R2107 Quick Start Guide Technical service bulletin
Data subject to change without notice | BTC 463002101 A | 08.2010 Buderus
Bosch Thermotechnology Corp.
50 Wentworth Ave
Londonderry, NH 03053
Tel: [phone]
Fax: [phone]
www.buderus.us
REF TEMP – Will change according to system design. Program to
the following:
1. Baseboard – 160 °F
2. Hydro-Air – 128 °F
3. Panel Rads – 155 °F
4. Cast Iron Rads – 150 °F
• To change REF TEMP:
While on the REF TEMP setting, hold and turn
dial to proper design temperature
REMOTE 1 - default is OFF, but must be changed to ON when
using BFU.
• To change REMOTE 1:
While on the REMOTE 1 setting, hold and turn
dial to select ON.
ROOM COMP – you only get this setting when you turn on BFU
and this must be set to 18.
• To change ROOM COMP:
While on the ROOM COMP setting, hold and turn
dial clockwise to select 18.
OASETBACK – This must always be changed! Change to
SETBACK when using standard themostats
(no BFU) and RMSETBACK if using BFU room
sensor.
• To change OASETBACK:
While on the OASETBACK setting, hold and turn
dial to select proper setting.
OFFSET – Will change according to system design. Program for
the following:
1. Baseboard, Panel Rads, and Cast Iron Rads – 0
(default)
2. Hydro-Air – Must be changed to 9
3.
• To change OFFSET:
While on the OFFSET setting, hold and turn
dial clockwise until 9 is selected.
Use the following under CIRCUIT 2:
REF TEMP – Rule of thumb: set REF TEMP 10 °F lower than
design water temp
Examples:
1. Staple up (No Plates) 135 °F
2. Below sub-oor w/ plates 125 °F
3. Quick-track (or equal) 115 °F
4. Slab (nothing over) 90 °F
** All other settings under CIRCUIT 2 will follow same rules as
CIRCUIT 1.
Additional Rules
1. Never use a BFU with a hydro-air
2. If you are using the hydro-air settings above and circuit 2 for
radiant, you must adjust circuit 2 temp down. Raising the day
temp setting to 86 will also have an effect on circuit 2.
3. All settings listed above are starting points only – the heating
curve may need to be adjusted further after the system is up
and running. It is always best to start the curve low and work up
from there.