Table of Contents
Advertisement
®
SlimFit
Series 3
Field wiring
I. Proof of closure (flow switch and/or CAD) –
1. A flow switch or combustion air damper (CAD) interlock can be config-
ured by clipping the purple wire attached to Pin 3 of P7 such that there is
sufficient room to strip ends and connect to field wiring. Strip the jumper
ends and wire components as shown at right and in the wiring diagram
(Figure 52, page 60).
Do NOT clip wires attached to other pins on P7. Only clip purple
wire attached to PIN 3. Damaging the other wires will cause boiler
fault and will require part repair or replacement.
2. No control settings are required when using a flow switch.
3. Recommended configuration of the SlimFit control for a CAD interlock:
a. Assign
as a
b. For the
. This ensures the damper will be activated any time the boiler
is called on to fire.
c.
will provide 120VAC to the damper motor. Use an isolation
relay if damper motor requires another voltage or more than 2.2 amp if
using 120 VAC.
The devices used must provide electrically isolated contacts,
*
because the P7 jumper circuit carries 5 VDC.
Part number 550-100-168/0516
COMMERCIAL CONDENSING GAS
(SlimFit control, bottom left of center)
function.
operating mode, select
—
-
FIRED WATER BOILER
(continued)
OPTIONAL
See Figure 52, page 60 for details
Boiler Manual
55
Advertisement
Table of Contents
