Regin CORRIGO C40-LON Instruction Manual

CORRIGO C40-LON
IMPORTANT: Read these
instructions before installation
!
and wiring of the product.
Normal
Reduced
0
Auto
Fig 1
Fig 2
Box 116 428 22 KÅLLERED, SWEDEN
Tel:+46 (0)31 795 44 60 Fax:+46 (0)31 795 38 50
INSTRUCTION
Corrigo C40-LON is a controller primarily intended
for controlling air handling units. It can easily be
adapted to suit different types of units.
Corrigo C40-LON has built-in capability for LON
communication. See separate LON interface manual.
Corrigo C40-LON has six 0...10 V DC control outputs,
three in sequence for controlling for example heating /
heat exchanger / cooling and two for speed control of
supply air fan and exhaust air fan and one for humidity
control. 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 C40-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
DI7
output for total alarm. Corrigo C40-LON has a year-base
real-time clock, week-scheduler , holiday calendar,
holiday periods and automatic normal time/daylight
saving time change-over.
DI8
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
Ambient temperature
Supply voltage
Terminals 42 and 43: 24 V AC, ±15%, 50/60 Hz.
Fan speed control, supply/exhaust air fans AI1, AI2
Connect AI1 and AI2 to pressure transmitters measuring
the pressure over each fan. Use transmitters with a
0...10V DC output signal. The pressure range is
adjustable.
N.B. Since these signals control vital functions they must
be connected for the unit to work as intended.
Corrigo
DMD

Installation

IP20
0...50°C

Wiring

Corrigo
DTL
ð
INSTRUCTION

Analogue inputs AI1...AI8

N.B. All AI-inputs must refer to the signal neutral terminals
for AI-inputs (terminals 24, 27, 30, 33).

Humidity sensors AI3, AI4

AI3 and AI4 are to be connected to humidity transmitters
with output 0...10 V DC corresponding to 0...100% RH.
AI3, room humidity sensor, main sensor.
AI4, duct humidity sensor, limiting sensor placed in the
incoming air duct after the air handling unit.

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 schematics
on page 6.
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.

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, normal flow.
DI8 Input for start of extended running time, reduced
flow.
1