Slant/Fin VHS-180 - Manual (Page 15)

V
ICTORY
II
VHS Models 15
Figure 11a. Wiring diagram for boilers equipped with Hydrolevel Hydrostat Control
Figure 11b.
5. Indirect External Water Heater
If system includes indirect water heater, the indirect signal
must be separated from heating zones(s) system. See figure
14 and 15. Follow steps below:
a. Connect end switch of the indirect water heater relay
to I1 and I2 of the boiler temperature control.
b. Connect end switch of the heating zones(s) relays to
T and TV of the boiler temperature control.
c. Power DHW and heating zone(s) circulators through end
switch relays as sgown on figure 14. Do not connect
heating zone(s) circulators to C1 and C2 of the control.
Note: For single heating zone with external indirect water heater. See figure 16.