48
STRATA1
3 8 & 3 8 / 4 6 C O M B I
optional matched controls (contd)
multiple boiler Kaskade manager
KKM2 modulating sequence controller:
A comprehensive compact wall mounted microprocessor control panel which allows the control of up
to five Strata 1 boilers. The KKM2 provides fully modulating control over the connected boilers ensuring
precise output control and maximum efficiency.
In addition to boiler control, the KKM2 can provide the drive signal for a heating circuit pump and can
provide control for stored domestic hot water (with priority over heating). Domestic hot water may be
charged using either a diverter valve or primary pump, either of which are driven from the sequencer.
External control input is via either a volt free contact (eg time switch), 0-3v or 10v input, or an RE2132
modulating room unit plus necessary temperature sensors. Heating flow temperatures may be either
constant temperature or direct-on-boiler weather compensated variable (by means of the in-built
compensator). If more than five boilers are required to be controlled, then additional KKM2’s may be
slaved to the first control with slave capacity of four boilers per each additional sequencer. Standard
features include pump overrun, boiler load rotation, frost protection and pump exercise program.
0-3/0-10 volt control
The Strata 1 can be operated via 0-3 volt or 0-10 volt control. The connection details are shown in
fig 22. For further details on 0-3 or 0-10 volt control please contact the Technical Department.
RE2132
1
Has No
Function
2
3
4
R1
R2
R3
5
6
24V dc
T
T
-
+
-
v
+
0
0 - 10 Volt
Adaptor
V
0 - 10 Volt
Control
-
+
0
V
RE2132
1
Has No
Function
2
3
4
R1
R2
R3
5
6
24V dc
T
T
0 - 3 Volt
Control
0-10 Volt Control
0-3 Volt Control