Mitsubishi Electric PAC-YU24HT Installation Manual

WT04645X02
GB
Air-Conditioners For Building Application
External Heater Adapter
PAC-YU24HT
Installation Manual
This manual describes installation of the External Heater Adapter that connects to CITY MULTI air conditioner R410A series indoor unit. This
products is the special wiring parts to drive an electric heater with the air conditioner. Please refer to the service handbook for details. For your
safety, be sure to read firstly "
1 Safety Precaution
G The following two symbols are used to denote dangers that may be caused by incorrect use.
WARNING
This symbol denotes what could lead to serious injury or death if your misuse the PAC-YU24HT.
CAUTION
This symbol denotes what could lead to a personal injury or property damage if you misuse the PAC-YU24HT.
G After reading this instruction manual, keep it in a place where the end user can find it anytime he or she wants to it. When someone moves,
repairs or uses the PAC-YU24HT, make sure that this manual is forwarded to the final user.
Ask your dealer or technical representative to install the unit.
Any deficiency caused by your own installation may result in an electric
shock or fire.
Ensure that installation work is done correctly following this instruc-
tion manual
Any deficiency caused by installation may result in an electric shock or fire.
Firmly connect the wiring using the specified cables.
Carefully check that the cables do not exert any forces on the termi-
nals.
Improper wiring connections may produce heat and possibly a fire.
Never modify or repair the PAC-YU24HT.
Any deficiency caused by your modification or repair may result in an elec-
tric shock or fire.
Consult with your dealer about repair.
All electrical work must be performed by a licenced technician, ac-
cording to local regulations and the instructions given in this manual.
Any lack of electric circuit or any deficiency caused by installation may
result in an electric shock or fire.
Do not move and re-install the PAC-YU24HT yourself.
Any deficiency caused by installation may result in an electric shock or fire.
Ask your distributor or special vendor for moving and installation.
Do not install in any place exposed to flammable gas leakage.
Flammable gases accumulated around the body of PAC-YU24HT may
cause an explosion.
Do not use in any special environment.
Using in any place exposed to oil (inculuding machine oil), steam and sul-
furic gas may deteriorate the performance significantly or give damage to
the component parts.
Wire so that it does not receive any tension.
Tension may cause wire breakage, heating or fire.
2 Parts list
Make sure that the following items are included in the package.
(1) External output cable (with yellow connectors) ............................... 2 pcs.
(2) Fan speed setting cable with resistance (with green connectors) .. 2 pcs.
Two types of adapters with different types of connectors are included in the package.
1 Safety Precaution " described below thoroughly and then install the PAC-YU24HT.
WARNING
Stop the operation if any malfunction occurs.
If malfunction occurs (burning smell, etc.) stop the operation and turn off
the power supply. Contact your dealer or technical representative. If the
controller continues to operate after a malfunction occurs, this may cause
damage, electric shock or fire.
Do not turn on the main power until installation has been completed.
Doing so may result in electric shock or fire.
Leave sufficient space between heater and indoor unit to allow for air
movement to prevent the indoor unit from overheating.
If they are installed too closely and the indoor unit temperature exceeds
40 ˚C, malfunctions or fire may result.
Keep the heater clean to keep the indoor unit from sucking in accu-
mulated dust on the heater.
Dust particles that enter the indoor unit may cause fire.
When air conditioner and heater are configured to perform an inter-
locked operation, do not use any other type of cables except this ex-
ternal heater adapter (PAC-YU24HT).
The use of any other type of cables may result in malfunctions or fire.
Do not build a heater into the indoor unit.
Doing so may result in fire.
CAUTION
Do not install in any place where acidic or alkaline solution or special
spray are often used.
Doing so may cause an electric shock or malfunction.
Do not install in any steamy place such a bathroom or kitchen.
Avoid any place where moisture is condensed into dew.
Doing so may cause an electric shock or malfunction.
Do not wash with water.
Doing so may cause an electric shock or malfunction.
Do not install in any place at a temperature of more than 40˚C (104˚F)
or less than 0˚C (32˚F) or exposed to direct sunlight.
R410A Series