5302
682
3
2.1 Operating Controls / Display Elements
1.1 Safety
This “Attention” symbol is positioned before all important safety tips.
Please follow these instructions in detail to avoid property damage, personal injury, or loss of life.
H
Installation
Please carefully read this manual prior to
attempting equipment operation. Any
warranty is null and void when these
instructions are not followed.
Viessmann boilers, burners and controls
are approved for sale in North America by
International Approval Services (IAS).
All electrical wiring is to be done in
accordance with the latest edition of the
National Electrical Code ANSI/NFPA 70. In
Canada use latest edition of CSA C22.1
Part 1 and/or local codes.
We offer frequent installation and service
seminars to familiarize our partners with our
products. Please inquire.
H
Working on the equipment
All personnel working on the equipment or
the heating system
must have the
proper qualifications
and hold all
necessary licenses. Ensure
main power
supply
to equipment, heating system, and
all external controls and power supplies
has been
deactivated
.
Close main gas
or oil supply valve.
Take precautions in
both instances to avoid accidental
activation of power during service work.
2.1 Operating Controls / Display Elements with flip-down covers open
Dials shown in default factory position.
1
Comfortrol control unit
2
Lead boiler selection switch
FK/WA
. . . . .
= Manual operation
= Automatic operation
3
Boiler sequence selection switch
4
Burner status indicator
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
5
On/off switch
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
I
= on
O = off
6
Additional feature slots
operating hour counter
h
. . . . . . . . . . . . . . . . . . . . . . .
7
Safety temperature high limit
. . . . . . . . . . . . .
8
Adjustable high limit
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9
TUV service button
(for service purposes only)
TUV
. . . . . . . . . . . .
10
Right flip-down cover
11
Override switch
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
= provisional operation
= automatic operation
12
Middle flip-down cover
13
Boiler code plug
A
Display
B
Program selection switch
. . . . . . . . . . . . . . . . . . . . . . .
C
Temperature normal operation
. . . . . . . . . . . . .
D
Party button
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
E
Temperature reduced operation
. . . . . . . . . . .
F
Energy saving button
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
G
Information key (overview)
. . . . . . . . . . . . . . . . . . . . . .
H
Default factory settings
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
K
Adjustment knob
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
L
Selection keys
,
,
,
. . . . . . . . . . . . . . . . . . . . . . .
M
Flip-down cover