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Part number 550-100-252/0520
– 65 –
MENU
ITEM
PURPOSE
Overview
• There are three inputs/outputs available on
each boiler. This menu allows assignment
of which inputs/outputs operate which
priority/system.
INPUT 1
INPUT 2
INPUT 3
• See “Unity
TM
control Priorities & Input/
Outputs” on page 4 for an explanation of
priorities, inputs and outputs.
• Priority settings are adjustable. See page 61
through page 64 for priority options.
• The Assign Inputs menu is for designating
priorities to the correct inputs according to
the system installed.
• Multiple inputs can use the same priority.
• The Source line designates Input 1 as either
thermostat controlled or 0–10V controlled.
(On Master/Shadow systems, this line is
not present and Input 1 is predetermined
as a thermostat-controlled input.)
• When choosing 0–10V as the Source, a
NOTICE screen will pop up explaining
the use of the 0–10V input. Press SAVE to
use this option, or press cancel to return
the input to TT1.
AUX
PUMP/
OUTPUT
• The AUX PUMP/OUTPUT function en-
ables an output to turn on in a variety of
selectable conditions.
• See page 66 for explanations and recom-
mended applications.
• In network boiler applications, outputs
assigned AUX PUMP/OUTPUT are con-
trolled by the master boiler, based on the
input/output and blower behaviors of all
boilers on the network.
ASSIGN INPUTS menu
Boiler Model, Altitude are critical settings.
Failure to set correctly could result in severe per-
sonal injury, death or substantial property damage.
1. Access contractor menus by pressing and holding the UP and
DOWN arrow keys at the same time for 7 seconds.
2. See Figure 36, page 57 for the screen sequences up to the
CONTRACTOR menu.
Figure 44 Assign Inputs menu (see Figure 36, page 57 to access CONTRACTOR menu)
SVF
™
Series 1
COMMERCIAL CONDENSING GAS-FIRED WAT ER BOILER
— Advanced Manual
Screens shown here are typical only.
Actual screens depend on control settings
chosen.
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