Weil-McLain 550 MBH Nstallation And Operation Manual page 58

®
SlimFit Series 3
Field wiring
M. Multiple Boiler and BMS Connections –
1. The boiler control is capable of multiple boiler communication and control
of up to eight boilers in one installation.
2. The boiler control is also capable of BMS communication.
3. See SlimFit Advanced Manual for multiple boiler installation and setup
information.
N. Additional heat demand contacts – OPTIONAL
1. The control module can be set to activate another heat source using its ad-
ditional heat demand dry contacts through terminal block P16 pins 6 & 7.
2. Connect these terminals to call for heat from the other heat source.
3. Contact electrical ratings: 24VAC or less; 0.5 amp or less.
4. Set the control to activate the heat demand contacts as needed.
5. See SlimFit Advanced Manual to configure.
O. 0-10 VDC Output Section
1. The control module can be set to activate another heat source using its
0-10VDC Output through terminal block P16 pins 1 & 2.
2. Connect these terminals to 0-10VDC inputs on another heat source to control
its modulation rate.
3. Maximum electrical ratings: 10VDC; 108μ A.
4. Set the control to activate the output as needed.
5. See SlimFit Advanced Manual to configure.
58
COMMERCIAL CONDENSING GAS
(SlimFit control module, top left)
(SlimFit control module, top left)
—
-
FIRED WATER BOILER
(continued)
see ADVANCED Manual
(Expansion module, right side)
See SlimFit Advanced Manual for details
See Figure 52, page 60 for details
See Figure 52, page 60 for details
Boiler Manual
Part number 550-100-168/0516