UTICA BOILERS MAC-150 Manuel D'installation, D'utilisation Et D'entretien page 29

11.3.2 INDIRECT STORAGE TANK
A Heating system
B Three way diverter valve
C
Heating water flow
D
Heating supply to DHW indirect storage tank coil
E Heating water return
F Tank
G DHW priority sensor tank
The boiler MAH-125 can be electrically connected to an indirect storage tank. A diagram of the hydraulic connection of the
external indirect storage tank is shown in the figure below. Connect the DHW priority sensor NTC to terminals 9-10 on terminal
block M2. The sensitive element of the NTC sensor must be inserted in the sensor well located on the indirect storage tank.
Make sure that the exchange capacity of the storage boiler coil is appropriate for the power of the boiler. Adjust DHW
temperature (+95 °F...+140 °F / +35 °C...+60 °C) by pressing
IMPORTANT: set parameter P03 = 05 as described in: "PARAMETER SETTINGS".
.
29
240011317, Rev. F [03/31/2017]