Lennox Comfair HD Series User guide

COMFAIR
440 - 860 m3/h
COMFAIR HD-AGU-1107-E
Application guide
HD High wall fan coil unit

• 1 •Application Guide •COMFAIR HD-AGU-1107-E
HIGH WALL FAN COIL UNITS - HD
General description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
General data - Eurovent Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
CONTROLLERS
General description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
APPLICATION GUIDE
Ref : COMFAIR HD-AGU-1107-E
TABLE OF CONTENTS
COMFAIR HD
High wall fan coil units
All the technical and technological information contained in this manual, including any drawing and technical descriptions provided
by us, remain the property of Lennox and must not be utilised (except in operation of this product), reproduced, issued to or made
available to third parties without the prior written agreement of Lennox.
Product designed and manufactured under a quality management system certified ISO 9001.
Our products comply with the European standards.
Our company is a member of the Eurovent Certification Program.
The COMFAIR HD LENNOX fan coil units are tested and rated in accordance with Eurovent certification program.

• 2 • Application Guide •COMFAIR HD-AGU-1107-E
GENERAL - HD
Comfair HD fan coil units are similar in design and use to the widely
used DX high-wall mini-split systems. With a maximum width of only
210mm, the casing is manufactured from high quality plastic and
is of an aesthetically pleasing design to compliment almost every
environment.
«A BREATH OF FRESH AIR»
The fan is of a Tangential type running at low speed to guarantee
low noise levels. The concept of air discharge from the unit allows
efficient distribution of the treated air for maximum comfort, and
simplicity of use. HD units are equipped with a system of automatic horizontal air deflection through an arc of 35° in cooling operation
(10° in heating operation), which avoids stratification of the airstreams. When the unit stops, the deflector blades close automatically,
which serves not only to protect the internal components against dust but also preserves the
neat aesthetic appearance of the unit.
FILTRATION AND AIR QUALITY
The Comfair HD units not only control the temperature of the air but also the air quality in the
conditioned space. Each unit is fitted with a filter and an Ioniser which produces negatively
charged ions which attracts the positively charged dust particles and neutralises harmful
microbes present in the atmosphere. The Ioniser comprises of a small generator, which transmits
an intermittent high voltage to carbon fibres situated in the airstream.
COILS
Each unit contains a chilled and hot water coil manufactured from copper tubes with aluminium fins. Water connections are female gas
½» and each coil is fitted with an air vent. A water temperature sensor prevents low temperature discharge.
REMOTE CONTROLLER
The infa-red remote controller offers the same functions as a DX split system. It includes an LCD display which indicates the status
and set points of the unit. Sixteen buttons allow fast and easy control of the operation of all functions of the unit.
HIGH WALL FAN COIL UNITS - HD

• 3 •
123
1,2 1,55 2,89
1,45 1,7 3,32
1,7 1,99 3,44
1,45 1,87 3,71
1,73 2 4,2
2,04 2,46 4,42
1,81 2,21 4,51
2,22 2,42 5,24
2,59 3,32 5,64
9,1 16 48,1
13 18 61,4
18 20 68,1
8,4 14 42,2
12 16 54
16,7 17 59,8
0,02 0,02 0,05
0,03 0,03 0,05
0,03 0,03 0,06
230/1/50
49 46 50
52 50 57
54 54 61
Application Guide •COMFAIR HD-AGU-1107-E
GENERAL DATA - EUROVENT CONDITIONS - HD
All data are at Eurovent conditions.
http://www.eurovent-certification.com/
PROGRAM: FC-2-H
COMFAIR HD
Sensible cooling capacity kW
Min
Med
Max
Total cooling capacity kW
Min
Med
Max
Heating capacity kW
Min
Med
Max
Water pressure drops in cooling kPa
Min
Med
Max
Water pressure drops in heating kPa
Min
Med
Max
Fan electrical power kW
Min
Med
Max
Voltage V/Ph/Hz -
Sound power level dB(A)
Min
Med
Max

• 4 •
100
60 320
1
2
3
4
5
6
7
400
500
550
B
490
500
157
AB
15 25
Ø 16,5
A
Application Guide •COMFAIR HD-AGU-1107-E
INSTALLATION - HD
INSTALLATION WITH SIMPLE MOUNTING PLATE
The method of installing the wall-mounted water-filled fan coil of the HD range is shown below. Take into account the following:
- Looking at the unit from the front, the supply pipes go from right to left.
- The system pipes must come from the left.
Make sufficient large hoel in the wall for the system water pipes
to pass through.
SYSTEM
WATER PIPES
SYSTEM
WATER PIPES
HOSE
Take two hoses with 1/2" fitting and connect to the systems pipes.
These pipes must be lagged.
MOUNTING PLATE
MOUNTING PLATE
Fix the fan coil mounting plate to the wall.
HD
Anchor the fan coil to the mouting plate
Tilt the fan coil and insert the relative polystyrene foam spacer and
then carry out the water connections
Put the fan coil back to its position of operation
SIZE OF WATER AND CONDENSATE DRAIN FITTINGS
HD1 AND HD2
HD3
A: Hoses for water connection Ø 1/2"
B: Condensate drain pipe Ø 16,5 mm

• 5 •
7
8
9
345 21
6
235
370
200
100
50
65
9-10 mm
Application Guide •COMFAIR HD-AGU-1107-E
Important! It is recommended that wall-mounted water-filled fan coils are
installed with ON/OFF devices.
1: Supply pipe (return)
2: Supply pipe (delivery)
3: Condensate drain pipe
4: Clamp for fixing the condensate drain/connecting pipe
5: Condensing collecting tray
6: Condensate outlet
7: Fan coil anchoring plate
8: Screws for mounting plate assembly
9: Valve body
INSTALLATION - HD
INSTALLATION WITH BUILT-IN VALVES
Proceed as shown bellow to assemble the mounting plate.
OUT
IN
From HD
To HD
CAUTION! Check that the highlighted measurement is exact
1. Identify the position on the wall where the fan coil is to be installed
and create a niche with the dimensions shown bellow:
2. Cover the bottom edge of the niche with a steel angle bar
(NOT supplied). Apply the mounting plate and fix it using four
screws and four screw anchors in the relative holes:
ANGLE BAR
3. Fix the condensate collecting tray by inserting two self-tapping
screws into the relative holes. The external surface of the tray must
be flush with the wall:
4. Position the fan coil on the mounting plate:
5. Tilt the fan coil and insert the relative polystyrene foam spacer
so that the valves can be easily reached and connected to the
appliance and to the mains water supply:
6. Connect the hoses to the fan coil supply pipes and the condensate
drain hose:

• 6 •
A
A
B
Application Guide •COMFAIR HD-AGU-1107-E
7. Connect the valve to the connecting hoses:
INSTALLATION - HD
8. Fix the bracket for securing the condensate drain hose and the
connecting hoses on the condensate collecting tray:
9. Fix the condensate drain hose with silicone:
INSTALLATION WITH BUILT-IN
VALVES - CONT’D
CAUTION! The condensate collecting tray must be fixed so that it slopes
gently downward towards the condensate drain outlet:
N.B.:
- Do not bend or damage the enclosed mounting plate
- Comply with the highlighted measurements (previous page)
- The base of the enclosed mounting plate must project by 9-10 mm
from the wall
- The condensate collecting tray must always be flush with the wall.
INSTALLATION WITH VALVES
AND OUTER FRAME
Proceed as shown bellow to assemble the mouting plate:
IMPORTANT! It is recommended that wall-mounted water-filled fan coils
are installed with ON/OFF devices.
10. Replace the fan coil in its original position.
1. Mark the position on the wall where the fan coil is to be installed,
then apply the mounting plate and fix it with two screws and
screws anchors in the relative holes.
2. Position the cross rail of the frame (A) on top of the mounting
plate previously fixed to the wall.
HD1 AND HD2
HD3
N.B. In model 3, the threaded bars are locked onto the MOUNTING PLATE
with nut and check nut.
Fix to the wall
with threaded
bars
Fix to the wall
with screws
Fix to the wall
with screws
3. Fix the extension (B) to the cross rail with the 4 self-tapping
screws provided in the kit:
HD1 AND HD2

• 7 •
B
A
Application Guide •COMFAIR HD-AGU-1107-E
INSTALLATION - HD
HD3
4. Final result:
HD1 AND HD2
HD3
5. Repeat points 4, 5, 6, 7, and 8 of the previous section (Installtaion with built-in valves)
INSTALLATION WITH VALVES AND OUTER FRAME - CONT’D

• 8 •
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Application Guide •COMFAIR HD-AGU-1107-E
CONTROLLERS
GENERAL DESCRIPTION
CD2X6
Wall mounted - 3 digits display
On/Off - Heating/Cooling - 3 speeds
Ambiant temperature knob adjustment
RCE 10E
Wall mounted
On/Off - Heating/Cooling - 3 speeds
Ambiant temperature knob adjustment
Wall mounted
CD2X6 RCE10E
Characteritics
On/Off
Manual speed control
Automatic fan control
Manual Heating/Cooling control
Automatic Heating/Cooling control
Temperature setting knob
External centralised contact
Windows contact
Digital display
On/Off valve control
Modulating valve control
Available for
2 pipes
2 pipes + electrical heater
4 pipes

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COMFAIR HD-AGU-1107-E
Due to Lennox’s ongoing commitment to quality, the specifications, ratings and dimensions are subject
to change without notice and without incurring liability.
Improper installation, adjustment, alteration, service or maintenance can cause property damage or
personal injury.
Installation and service must be performed by a qualified installer and servicing agency
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