GE RAG61 Instruccion De Instalación
17
Central Desk Control -
Optional Interface Module (RAKOIM) is
required
required
Some installations may want to govern the ability of the unit
to operate from a control device remote to the unit or even
remote to the room in which the unit is located. The general
term given to systems such as this is Central Desk Control.
The most common installation of this type of system is a
switch mounted at the registration desk and, upon guest
check-in, a button is pushed or a switch is moved to allow
the air conditioner to operate. Likewise, when the guest
checks out the device is put into the “OFF” position so the
unit will not operate while the room is vacant. It is not
necessary that the controlling device be located at a central
desk to employ a device that will control the unit operation.
For instance, in some resort areas devices are connected to
sliding glass doors and opening the door causes a contact to
close, signalling the air conditioner to turn off. This
prevents energy being wasted by operating the air
conditioner when warm humid air is entering the room.
Some systems operate by motion sensors or heat sensing
detectors mounted in the room. These types of systems
determine occupant presence in the room and allow the
unit to operate; if no one is in the room the device signals
the air conditioner to turn off.
Zoneline models offer Load Shedding capabilities on units
connected to Central Desk Control Systems. For more
information on the Models’ Load Shedding Feature, see
page 14.
There are a wide variety of devices available, each with its
own benefits and constraints. While GE does not offer
components that are external to the unit for a Central Desk
Control (CDC) system, GE Zonelines are compatible with
most CDC and Energy Management systems. No external
power source is required to operate this system. The unit
provides a 24 volts DC circuit that powers the Central Desk
Control system.
All Zoneline 2200, 3200, and 5200 Series units can have the
Optional Interface Module (RAKOIM) field installed to
provide a CDC interface that permits the unit to be
connected to most of the energy management systems on the
market. The devices connected to the Zoneline units require
no power supply or transformer external to the unit.
See page 16 RAKOIM for field wiring.
Important CDC Comments (all series applicable)
to operate from a control device remote to the unit or even
remote to the room in which the unit is located. The general
term given to systems such as this is Central Desk Control.
The most common installation of this type of system is a
switch mounted at the registration desk and, upon guest
check-in, a button is pushed or a switch is moved to allow
the air conditioner to operate. Likewise, when the guest
checks out the device is put into the “OFF” position so the
unit will not operate while the room is vacant. It is not
necessary that the controlling device be located at a central
desk to employ a device that will control the unit operation.
For instance, in some resort areas devices are connected to
sliding glass doors and opening the door causes a contact to
close, signalling the air conditioner to turn off. This
prevents energy being wasted by operating the air
conditioner when warm humid air is entering the room.
Some systems operate by motion sensors or heat sensing
detectors mounted in the room. These types of systems
determine occupant presence in the room and allow the
unit to operate; if no one is in the room the device signals
the air conditioner to turn off.
Zoneline models offer Load Shedding capabilities on units
connected to Central Desk Control Systems. For more
information on the Models’ Load Shedding Feature, see
page 14.
There are a wide variety of devices available, each with its
own benefits and constraints. While GE does not offer
components that are external to the unit for a Central Desk
Control (CDC) system, GE Zonelines are compatible with
most CDC and Energy Management systems. No external
power source is required to operate this system. The unit
provides a 24 volts DC circuit that powers the Central Desk
Control system.
All Zoneline 2200, 3200, and 5200 Series units can have the
Optional Interface Module (RAKOIM) field installed to
provide a CDC interface that permits the unit to be
connected to most of the energy management systems on the
market. The devices connected to the Zoneline units require
no power supply or transformer external to the unit.
See page 16 RAKOIM for field wiring.
Important CDC Comments (all series applicable)
1) When the switching device closes the circuit of the
CDC conductors, the unit operation stops.
2) Do not use a common buss (at the unit or at the switch
panel) in the wiring. Both wires comprising the circuit
must connect to the unit’s (RAKOIM) and to the
controlling switch. Running one wire from one unit
to another unit - “common bussing” - may damage
internal components or cause erratic operation of
the system.
3) A 24 volt transformer is contained within the
CDC conductors, the unit operation stops.
2) Do not use a common buss (at the unit or at the switch
panel) in the wiring. Both wires comprising the circuit
must connect to the unit’s (RAKOIM) and to the
controlling switch. Running one wire from one unit
to another unit - “common bussing” - may damage
internal components or cause erratic operation of
the system.
3) A 24 volt transformer is contained within the
Zoneline. No external voltage should be applied to
the unit through the CDC terminals. (Voltage on the
CDC conductors is 24 volts DC.)
the unit through the CDC terminals. (Voltage on the
CDC conductors is 24 volts DC.)
4) Recommended wire size must be followed as a
minimum requirement.
minimum requirement.
Freeze Sentinel
TM
remains operational when the unit is
connected to a CDC system. Even if the unit is turned “OFF”
at the central location, if the sensor at the unit detects the
low temperature, the electric resistance heaters and the fan
will automatically turn on.
Connecting the Zoneline to a CDC system does not eliminate
the ability to connect the unit to a remote thermostat. Once
the circuit is “opened”, and control of the unit removed
from the CDC system, the selected controls - either the unit
mounted control or the remote thermostat - govern the
operation of the unit.
at the central location, if the sensor at the unit detects the
low temperature, the electric resistance heaters and the fan
will automatically turn on.
Connecting the Zoneline to a CDC system does not eliminate
the ability to connect the unit to a remote thermostat. Once
the circuit is “opened”, and control of the unit removed
from the CDC system, the selected controls - either the unit
mounted control or the remote thermostat - govern the
operation of the unit.
CDC Terminal Location and Typical Wiring
Auxiliary Control Panels With Cover Removed
Wire Size #AWG
#22
#20
#18
#16
#20
#18
#16
Maximum Allowable Length
600 Ft.
900 Ft.
900 Ft.
1500 Ft.
2000 Ft.
2000 Ft.
Example of Common Bussing
NOT PERMITTED
INCORRECT Common Bussing
Normally Open
Switch -
Unit Operational
Typical Wiring
(All Wiring Shown Is Field Supplied)