Viessmann VR1 22 Installation And Service Instructions Manual page 27

Vitorond 100, VR1 22 to 33, 91 to 140 Installation and Service
Electrical Connections (with Hydrostat 3250-Plus control)
* Riello only
If the Beckett or Carlin burners are being
installed, cut this length to 6" for connection
to burner junction box (located under the
burner primary control).
Electric shock hazard. Can cause severe personal injury
or loss of life if power source, including service switch
on boiler, is not disconnected before installing or servicing.
Installations must follow these codes and requirements:
- National Electrical Code, ANSI/NFPA 70, latest edition
- In Canada, CSA C22.1 Canadian Electrical Code Part 1
- Wiring must be N.E.C. Class 1. If original wire as
- Provide electrical ground at boiler as required by codes.
Burner wiring harness (supplied)
WARNING
and any addtional national, state or local codes.
and any local codes.
supplied with boiler must be replaced, type 105°C wire
or equivalent must be used. Supply wiring to boiler and
additional control wiring must be 14 ga. or heavier.
Burner Set-up
(continued)
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