2418C JAN 00 1.5.5
CORRIGO C10-LON
INSTRUCTION
Corrigo C10-LON is a controller primarily intended
for controlling air handling units. It can easily be
adapted to suit different types of units.
Corrigo C10-LON has built-in capability for LON
communication. See separate LON interface manual.
Corrigo C10-LON has three 0...10 V DC control outputs
in sequence for controlling for example heating / heat
exchanger / cooling.
It has a number of functions and possibilities, such as
DX-cooling in one or two steps, outdoor temperature
compensation, fire damper exercise, control and
monitoring of fans and circulation pump, free cooling,
heat-exhanger efficiency calculation etc.
Corrigo C10-LON can also receive and handle a number
of alarms such as fan and filter alarm, smoke alarm,
chiller alarm, heat-exchanger alarm and has a free relay
output for total alarm.
Corrigo C10-LON has a year-base real-time clock,
week-scheduler , holiday calendar, holiday periods and
automatic normal time/daylight saving time change-over.
Installation
Mount the unit on a DIN rail in a cabinet or separate
enclosure.
For mounting in the cabinet front, use mounting kit FMC.
Degree of protection
IP20
Ambient temperature
0...50°C
Wiring
Supply voltage
Terminals 42 and 43: 24 V AC, ±15%, 50/60 Hz.
Sensors AI3...AI8
Use PT1000 sensors. (See data sheet 4-150).
The choice of which sensors to connect is determined by
the choice of functions. The table, fig 3 can be used as
an aid in determining which sensors to install.
Connect the sensors according to the terminal schema-
tics on page 6.
N.B.
All AI-inputs must refer to the signal neutral termin-
als for AI-inputs (terminals 24, 27, 30, 33).
AI4
has different functions depending on settings.
1. Efficiency calculation - exhaust air sensor.
2. Liquid-connected heat exchanger - limiting sensor in
the exchanger circulation system.
3. External setpoint. Input for setpoint signal.
These functions are mutually exclusive.
Only one of them may be chosen.
AI8
is, depending on setting, used for:
1. Frost protection sensor for applications with water
heated heater.
2. High temperature limiting switch for applications with
electrical heater.
When used for high temperature limiting switch it must be
connected to a free contact closing on alarm.
Fan supervision,
supply air fan, exhaust air fan AI1, AI2
Connect AI1 and AI2 to free contacts that open when the
fans stop.
Either in form of pressure switches monitoring the
pressure over each fan or as free contacts in the fan
motor relays.
N.B.
Since these signals control vital functions they must
be connected for the unit to work as intended.
Digital inputs DI1...DI8
The digital inputs DI1...DI8 must refer to terminal 22.
N.B.
Terminal 22 must
not
be connected to any other
terminals but should only be used as reference for units
connected to DI1...DI8.
The inputs may only be connected to potential free
contacts.
Closed contact activates alarm or function.
Unused inputs are to be left open.
DI1
Input for filter guards
DI2
Input for circulation pump indication.
Must be connected for systems with water heating.
DI3
Input for chiller alarm
DI4
Input for rotation sentinel or ice build-up sentinel for
heat exchanger.
DI5
Input for smoke alarm.
DI6
Input for fire damper end-position indication, external
alarm or external switches ”not in Auto position”.
(See textblock on DO6/DI6 on page 6).
DI7
Input for start of extended running time for single
speed fan systems or high speed for two speed fan
systems.
DI8
Input for start of extended running time at low speed
for two speed fan systems
DI7 and DI8 should, depending on settings, either be
wired to a momentarily closing pushbutton or to, for
example, a timer.
If DI7 and DI8 are both closed at the same time the unit is
shut down.
If a separate handswitch for setting the running mode is
installed it should be wired according to figure 1 or 2.
!
IMPORTANT: Read these
instructions before installation
and wiring of the product.
1-speed fans
2-speed
INSTRUCTION
1
ð
Fig 3
Fig 1
High
Low
0
Auto
DI7
DI8
H
0
Auto
DI8
DI7
Fig 2
Tel:+46 (0)31 795 44 60 Fax:+46 (0)31 795 38 50
Box 116 428 22 KÅLLERED, SWEDEN