Johnson Controls YORK YHMH 20 Notice D'instructions page 24

RANGE
Electronics
YHMH 20
YHMH 30
YHMH 40
YHMH 50
Operation in cooling mode: room temperature 27°C d.b./19°C w.b., chilled water at inlet 7°C and at outlet 12°C
CONTENTS
GENERAL
General warnings
Basic safety rules
Contents of the supply
Receiving and handling the product
Technical data
Access to connections
Wiring diagrams
Control wiring diagrams
INSTALLER
Installation
Connections
Fitting the filters
First time of switching on
Filling and draining the system
USER
Wireless remote control
Wireless remote control: modes of operation
Programming the timer
Sleep mode
Operation of Wireless remote contro
Adjusting the airflow
Emergency operation
Maintenance
SERVICE
Maintenance
Troubleshooting
DESCRIPTION OF THE APPLIANCE
The fan coils are appliances intended for high quality civil
use. The elegant aesthetic design, the control electronics
and the top class components facilitate its location and
guarantee optimum conditions of comfort.
INDOOR UNIT
• Housing:
made of self-extinguishing plastic
• Electric fan unit:
cross-flow fan with direct current motor
3 speeds and auto function
• Exchange coil:
consisting of copper pipes with swirl design and aluminium
fins
2
GB
Electromechanics
YHMY 20
YHMY 30
YHMY 40
YHMY 50
The following symbols are used in some parts of the booklet:
page 3
3 CAUTION:
4 for actions that require particular caution and adequate
4 preparation.
5
5 FORBIDDEN:
6 for actions that MUST NOT be carried out.
7
9
10
13
13
14
15
15
18
18
19
19
20
21
22
22
• Control card:
microprocessor
• Filtering systems:
activated charcoal filters
REMOTE CONTROL (YHMY only)
The infrared remote control is used for control, adjustment
and programming; its functions and use are described in the
user guide.
Pictures of the hi-wall unit are purely rapresentative and
could be some differences with product received.
Cooling power
2,2 kW
2,9 kW
4,0 kW
4,8 kW