44
8.8 Indirect Storage Tank
A Heating system
B Three way diverter valve
C
D
Heating supply to DHW indirect storage tank
coil
E Heating water return
F Tank
G
Boilers DCBF- 100, 125, & 165 can be electrically
connected to indirect storage tank as follows:
• Connect DHW priority 10K Ω sensor NTC to
terminals 3-4 on terminal block M2.
• Insert 10K Ω NTC sensor element in the sensor
well of indirect storage tank.
• Verify exchange capacity of the storage boiler coil is
appropriate for boiler power.
• Adjust DHW temperature +95 °F...+140 °F (+35
°C...+60 °C) by pressing
on boiler
Control.
IMPORTANT: set parameter P03 = 05 as described in:
"PARAMETER SETTINGS".
*125 Model shown - See Application Guide for sizes 100 & 165
Note
Sensors used for this boiler are proprietary
to the manufacturer. Use of after market
sensors will diminish boiler performance.
8 - ELECTRICAL CONNECTIONS
FIGURE 8-7 Kt Indirect Storage Tank
8.9 Management of 0-10V Input
The functions with 0...10V regulator are activated by means of their parameters:
To enable 0-10V input change P82=4 to P82=3,
When P78=1 the input manages the heating set point temperature directly.
When P78=2 the input manages the heating power input directly.
Demand is activated above 3V and heating setpoint is calculated in proportion to deviation from 3 to 10 V DC, to
give a setpoint that goes from minimum to maximum.
Terminal # 9 is negative (-), terminal #10 is positive (+).
* See "Application Guide" for details on using a DHW
tank aquastat.
P78=1 P78 = 2
Voltage Temp Setting 100/115 125/150 165/205
°C °F kW MBH kW MBH kW MBH
0-3 OFF
3 25 77 4.9 16.6 6.4 22.0 8.6 29.5
4 32 90 8.4 28.9 10.7 36.5 14.4 49.0
5 40 104 12.0 40.8 14.9 51.0 19.9 68.0
6 49 120 15.4 52.4 19.2 65.5 25.5 87.0
7 57 135 18.5 63.1 23.4 80.0 31.1 106.0
8 65 149 22.2 75.7 27.7 94.5 36.6 125.0
9 73 163 25.3 86.2 31.9 109.0 42.5 145.0
10 80 176 27.4 93.6 36.9 125.0 48.1 164.0
240013375 REV A, [07/01/2021]
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