External Accessory Connection Box - Viessmann B2TB004 Installation Instructions Manual

Boiler Connections
Connections
(continued)
ACCESSORIES
(ie VITOTROL
REMOTE OR
MIXING VALVE)
20
0-10V INPUT
Vitodens 222-F, B2TB 19, 35, 68, 125 Installation

External accessory connection box

Note: See wiring diagram on page 41 for connection
to the control base.
IMPORTANT
Electrical installations must comply with the latest edition of:
In the U.S.A., the National Electrical Code (NEC),
ANSI/NFPA 70 and any other state, local codes and/or
regulations.
In Canada, the Canadian Electrical Code (CEC),
CSA C22.1 Part 1 and any other province, territory,
local codes and/or regulations.
120/1/60 (12 Amps -
POWER SUPPLY WITH
PUMP
full load amperage)
DISCONNECT AND
PROTECTION