Buderus Logamatic R2107 Quick Start Manual

Bulletin Number: TBG-21 | Model: Logamatic R2107 Controls

Technical service bulletin

Logamatic R2107 Quick Start Guide

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

• To set time:

Hold

is selected.

• To set Warm Weather Shutdown (WWSD) temp:

Hold

temperature.

and turn dial until proper day is selected.

1...7

and turn dial clockwise until proper time

and turn dial to appropriate

Procedure - Level 2 - Programming Settings

Hold together

Turn dial

“BLR TEMP”.

Then push

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

1...7

, , then release.

ve clicks clockwise. This brings you to

and turn the dial appropriately to

and turn

• For 24 hour Domestic Hot Water:

Hold

Release

turn the dial back to “CIRCUIT 1”.

When using hydro-air systems, you must also change

day/night temp.

• To change day temp:

Hold

• To change night temp:

Push

to 84° F.

and turn dial until "DHW PROD" appears.

and then press . Then re-hold and

and turn dial clockwise to 86° F.

then hold and turn dial clockwise

dial

• To change MAX TEMP:

While on the MAX TEMP setting, hold

dial

Push

“CIRCUIT 1”.

Then push

reach the following settings on the next page:

counter-clockwise.

clockwise to 194° F.

then turn dial clockwise once to

and turn the dial appropriately to

and turn

Bulletin Number: TBG-21 | Logamatic R2107 Quick Start Guide Technical service bulletin

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

dial

to proper design temperature

and turn

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

dial

to select ON.

and turn

ROOM COMP – you only get this setting when you turn on BFU

and this must be set to 18.

• To change ROOM COMP:

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.

While on the ROOM COMP setting, hold

dial

clockwise to select 18.

and turn

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

dial

to select proper setting.

and turn

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

dial

Data subject to change without notice | BTC 463002101 A | 08.2010

clockwise until 9 is selected.

and turn

Bosch Thermotechnology Corp.
50 Wentworth Ave
Londonderry, NH 03053
Tel:

[phone]

Fax: [phone]
www.buderus.us

Buderus