Installation Instructions for use by heating contractor Low-Loss Header for Vitodens 100-W, WB1A/B and Vitodens 200, WB2A/B (single-boiler installations only) 5602 876 v1.
Safety / General Low-Loss Header Installation Safety and Installation Requirements Please ensure that these instructions are read and understood before starting any service work. Failure to comply with these instructions may cause product/property damage, severe personal injury and/or loss of life.
Installation Low-Loss Header Installation Standard Equipment Contents Low-Loss Header, Type 80/60 Low-loss header (Type 80/60) Sensor well Drain plug Air bleed plug Insulation Installation Instructions The temperature sensor (see page 2) for Vitodens 200, WB2A/B must be purchased separately.
Installation Low-Loss Header Installation Residential Sizing Low-loss header single boiler applicationsfor Viessmann wall-mount boilers Boiler Model No. of Boiler Typical System Flow Rates Boilers max 20 25 System Dt*2 flow 11.0 14.0 rate 30 17.0 35 19.5 40 22.0 °F °C Viessmann temperature sensor required Vitodens 100 WB1A 8-24 1 6.2 1400 System Flow Rate LLH required LLH Model WB1A 8-30 1 6.2 1400 System Flow Rate LLH required LLH Model WB1B 26 1 6.
Installation Low-Loss Header Installation Residential Sizing (continued) Low-loss header single boiler applicationsfor Viessmann wall-mount boilers Boiler Model No. of Boiler Typical System Flow Rates Boilers max 20 20 System Dt*2 flow 11.0 11.0 rate 30 17.0 30 17.0 35 19.5 °F °C Viessmann temperature sensor required Vitodens 200 WB2B 19 1 6.1 1385 System Flow Rate LLH required LLH Model WB2B 26 1 6.1 1385 System Flow Rate LLH required LLH Model WB2B 35 1 6.
Installation Low-Loss Header Installation Dimensions (Type 80/60) Low-loss header Overall depth Overall width Overall height dimensions 2¼” (60 mm) 10c” (274 mm) 23” (586 mm) IMPORTANT Please note that the pipe connections on the system side are at a closer distance from each other than those on the boiler side.
Installation Low-Loss Header Installation Dimensions (Type 120/80) Low-loss header Overall depth Overall width Overall height dimensions 5½” (140 mm) 12c” (320 mm) 36” (914 mm) IMPORTANT Please note that the pipe connections on the system side are at a closer distance from each other than those on the boiler side.
Installation Low-Loss Header Installation Installation Steps 1. Remove low-loss header and supplied accessories from carton (see section entitled “Standard Equipment” on page 3 for a list of component parts included with your low-loss header). 2. Drain plug B, air bleed plug C (c/w O-ring) and sensor well D are pre-installed. Ensure thightness and check for leaks. 3. Tighten all connections. 4. Install low-loss header only in vertical position (as shown).
Electrical Connection Low-Loss Header Installation Sensor Installation for Vitodens 200, WB2A Boilers Plug X7 wired for installation with low-loss header only. 1. Insert plug X7 of the low-loss header sensor (as shown) into terminal X7 on the Vitodens 200 boiler control console (not applicable for Vitodens 200 WB2A 6-24C). A Low-loss header sensor Plug X7 wired for installation with low-loss header and DHW storage tank.
Electrical Connection Low-Loss Header Installation Sensor Installation for Vitodens 200, WB2B Boilers Accessing the X3 plug 1. Remove the control unit cover. 2. Remove the X3 plug from the control board. Attach sensors and/or KM-BUS and/or accessories and reinsert the X3 plug. Refer to the following sensor information. 3. Reinstall the control cover. 10 1. Connect the low-loss header sensor (if used) to terminals X3.4/X3.5 on the boiler control board. 5602 876 v1.
5602 876 v1.
Viessmann Manufacturing Company (U.S.) Inc. 45 Access Road Warwick, Rhode Island · 02886 · USA 1-800-288-0667 · Fax (401) 732-0590 www.viessmann-us.com · info@viessmann-us.com Viessmann Manufacturing Company Inc. 750 McMurray Road Waterloo, Ontario · N2V 2G5 · Canada 1-800-387-7373 · Fax (519) 885-0887 www.viessmann.ca · info@viessmann.ca 5602 876 v1.1 Technical information subject to change without notice. Printed on environmentally friendly (recycled and recyclable) paper.
