General Description - Lennox Climatic 200 Installation Operating & Maintenance Manual

GENERAL DESCRIPTION

This equipment is an electronic device that controls packaged water cooling systems via air and reversible air/water
heat pumps.
The thermostat allows the following operations:
- Unit ON/OFF.
- Select system operating mode.
- Set point adjustment.
- Alarm signal relay.
- Display temperature.
- Status of the unit alarms.
- Possibility of remote ON/OFF.
- A remote controller as an option.
REGULATION:
The control makes the system regulation as follow:
- Receives the signals of analogue inputs through the inlet and outlet probe temperature values and from the
refrigerant piping probe temperature (two for model Climatic
- Receives digital inputs through the status of low, high and end defrost pressure switches, flow switch (water flow)
status and from electrical protection of fan and compressor.
According to the values and status of analogue and digital inputs manages: the output signals; compressor, fan
and status of water pump operating, obtaining the regulation of the inlet water temperature to the unit, regulating
the speed of the air fan volume, activating the defrost cycle (heat pump units only); output signals water exchange
heater, water tank heater, and hot gas valve (all these elements are an option) used to protect the unit, and also
activates the alarm codes about, setting pressure switches, flow switch, water flow, and the electrical protection
of fan and compressor (see alarm section).
- A group of parameters let the control be programmed for each application.
The control incorporated in the unit contains the following devices:
®
MODEL Climatic 200
(One circuit unit model)
- Keypad:
Located in the unit.
The keypad provides control of the system.
- Fan Control Plate:
Located at the electrical box.
Allows the fan speed to be varied with
respect to the condensing temperature
(only for EAC 0091 to 0812 units and EAR
0091 to 0431 units).
Keypad located
in the unit
1 2
mode
set
on off
Climatic ® 200
OPTION
A remote controller is offered as an option.
To install this optional remote controller proceed as follow:
- Connect exactly as indicated in electrical diagram.
- The wire should not exceed 50 m.
The three cables for connection from the keypad to
the power board must be kept separate from other
cables, using an individual cable channel; and use
shielded cables, with a cross-section of 1 mm
MODEL Climatic
- Keypad:
- Control Module:
- Fan Control Plate:
Allows the fan speed to be varied with respect to the condensing
Fan control plate
2
.
®
400).
®
400 (Two circuit unit model)
Located in the unit.
Located at the electrical box.
This device controls the operation of the unit, allowing the
regulation of the system.
Located at the electrical box.
temperature (only for 0091-0812 units).
1 2
mode
set
on off
Climatic ® 400
Keypad located
in the unit
Electrical box at the unit
Terminal block
*
*Connection to be made by customer
2
Control Module
Fan control plate
Remote controller (optional)
Three-lead shielded cable
with a cross-section of 1 mm
MAXIMUM LENGTH 50m
2
x 1000
1
2