Electrical Connections (With Aquastat Control) - Viessmann VITOROND 100 Installation And Service Instructions Manual

Burner - Beckett
Burner Set-up (Beckett control)

Electrical connections (with Aquastat control)

WARNING
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.
All field supplied nominal 120 VAC voltage wiring must be sheathed in a flexible metal conduit.
"
Disconnect means, overload protection and low water cut-off must be provided as required by local codes.
"
Connect incoming line voltage HOT (L1) wire to terminal L1, and N to terminal L2 of the Honeywell high limit control (see
"
wiring diagram on page 35 or NO TAG.
Fig. 28
Legend
Cable strap (supplied)
Honeywell high limit control
Burner wiring harness (supplied)
WARNING
Ensure that burner wiring harness is
properly attached and secured to the
boiler side panel using the supplied
cable straps as depicted above. The
cable strap must be coiled on the
boiler side panel so that no slack is
left, allowing the burner/boiler door to
be swung open without disconnecting
the burner wiring harness from the
burner. Failure to heed this warning
may result in personal injury.
32
Installations must follow these codes
and requirements:
- National Electrical Code, ANSI/NFPA
70, latest edition and any additional
national, state or local codes.
- In Canada, CSA C22.1 Canadian
Electrical Code Part 1 and any local
codes.
- Wiring must be N.E.C. Class 1. If
original wire as 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.
- Provide electrical ground at boiler as
required by codes.
Burner wiring (Beckett)
IMPORTANT
The R7184 or GeniSys 7505P primary
control with valve-on delay (pre-purge)
and burner motor-off delay (post-purge -
factory default settings can be field
adjusted), requires a constant 120 VAC
power source supplied to the BLACK
wire on the control (see wiring diagram
on pages 35 and 35).
1. The cover mounting plate is not a
conduit connection point. Pass
conduit and attached connector
through the front opening in the
mounting plate or through one of the
knockouts on either side of the cover
and attach it directly to the
burner-mounted 4x4 electrical
junction box.
Room thermostat wiring
1. Install thermostat on inside wall
away from influences of drafts, hot
or cold water pipes, lighting fixtures,
television, sun rays or fireplaces.
2. Follow instructions supplied with
room thermostat. If it has a heat
anticipator, set heat anticipator in
thermostat to match power
requirements of equipment connected
to it. Boiler wiring diagrams give
setting for standard equipment.