Weil-McLain SVF 1500 Manual page 61

SVF
™
Series 1
Commercial Condensing Gas-Fired Water Boiler — Boiler Manual
Field wiring
G. External limits –
To cause MANUAL
TM
control will require manual reset after circuit is interrupted
ni
1. Remove factory-installed jumper and connect isolated contacts of external limits
across P13 pins 1 and 2 to cause the control to enter manual reset lockout if the
limit circuit opens. The limit must close and the control must be manually reset
using the procedure given in this manual. See drawing at right and wiring diagram
(Figure 51, page 50).
The control will lockout when a limit in its manual reset circuit opens (P13
pins 1 & 2). The control activates its alarm terminals and shuts the boiler
off. An operator (user or technician) must manually reset the control to
resume heating. Cycling power on and off will NOT reset the control.
To cause AUTOMATIC
TM control will reset automatically after circuit is interrupted
ni
1. Remove factory-installed jumper and connect isolated contacts of external limits
across P13 pins 3 and 4 to cause the control to shut down the burner on limit open-
ing, then automatically restart 150 seconds after the limit closes.
2. See drawing at right and wiring diagram (Figure 51, page 50).
H. Alarm contacts –
1. The control's alarm dry contact (P16, terminals 4 and 5) closes when the boiler
enters manual lockout only.
2. Connect these terminals for remote alarm notification.
3. Contact electrical ratings: 24VAC or less; 0.5 amp or less.
Part number 550-100-250/0819
(see Figure 51 - Figure 58)
OPTIONAL
OPTIONAL
(continued)
See Figure 51, page 50 for details.
See Figure 51, page 50 for details.
See Figure 51, page 50 for details.
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