Mitsubishi Electronics PCH24GK Control Using TWO Remote Controllers, How to set SW17-7 See Figure

Page 52

3. CONTROL USING TWO REMOTE CONTROLLERS

Two remote controllers can be used to control either one unit or a group of units. Units operate according to the latest com- mand from either of the two remote controllers.

Before operation, be sure to set one remote controller as the “main controller” and the other as the “sub controller”, using dip switch SW17-7 of the remote controller.

Figure 4

Individual

operation

Remote

controller

Remote

controller

Multiple operation

Remote

controller

Remote controller

3-1 How to set SW17-7 (See Figure 5.)

(1)For the main remote controller, turn SW17-7 OFF.

(2)For the sub remote controller, turn SW17-7 ON.

3-2 Remote controller LCD indication

(1)The same indications always appear on both the main and sub remote controllers, except during the timer operations.

(2)Timer operations can be set with either of the two remote controllers. However, LCD indication appears only on the remote controller used for timer-settings.

(3)If both remote controllers are set for timer operation with different time-settings, the timer operation with the shorter remaining-time is effective.

(4)Self-diagnostic function is available with either of the two remote controllers. If one of the remote con- trollers is used for the self-diagnostic function, the other remote controller displays the check mode.

If the self-diagnostic function is reset by either of the two remote controllers, both remote controllers are reset.

Figure 5

Main remote controller

O F

F

 

1

3

2

4

 

5

 

6

 

7

 

8

Remote controller

SW17

Sub remote controller

O F

F

 

1

3

2

4

 

5 6 7 8

Turn SW17-7 ON.

4. REMOTE ON-OFF AND INDIVIDUAL REMOTE CONTROLS

This method is available to control one unit or any number of units.

The following operations are available by connecting a relay, a timer adapter (PAC-SA89TA-E), and a remote ON/OFF switch to the system. Timer adapter is an optional part. Other parts are available on the market.

(A)To start all units in order by remote ON-OFF switch

(B)To stop all units simultaneously by remote ON-OFF switch

(C)To switch between the remote ON-OFF control and the individual remote control

4-1 System

Figure 6 shows the case of three units. The same is the case with any number of units.

Figure 6

power supply of control circuit

Remote

ON/OFF

switch

2-wire

Relay box

 

remote

Timer adapter cables

 

controller

cable

Remote

 

 

controller

 

OC277-52

Timer adapter PAC-SA89TA-E

Image 52
Contents Contents OC277-1Features OC277-2OC277-3 Easy Maintenance no Maintenance Necessary for 2500 HoursImproving Efficiency of Piping Work Part Names and Functions OC277-4Remote controller operation buttons OC277-5Remote controller display OC277-6OC277-7 SpecificationsModels PCH24GK, PCH30GK, PCH36GK, PCH42GK Data OC277-8Models PCH24GK, PCH30GK, PCH36GK, PCH42GK Performance Data CFM SHC TPCOC277-9 CFMOC277-10 Performance CurveOC277-11 PCH36GK Cooling Capacity PCH36GK Heating CapacityOC277-12 Condensing Pressure and Suction PressureOC277-13 PCH30GKOC277-14 PCH36GKOC277-15 PCH42GKStandard Operation Data OC277-16SHF PCH24GK PCH30GK PCH36GK PCH42GK OC277-17 Operating RangeOutlet AIR Speed and Coverage Range Additional Refrigerant Charge R22ozOC277-18 Noise Criterion Curves PCH24GKPCH30GK PCH36GK PCH42GKOC277-19 Outlines and DimensionsIndoor unit PCH24GK OC277-20 Indoor unit PCH30/36/42GKRefrigerant System Diagram Remote controllerOC277-21 PCH30GK PCH36GK PCH42GKModel PCH24/30/36/42GK Wiring Diagram Wiring DiagramOC277-22 OC277-23 Operation FLOW-CHARTMain Operation OC277-24 Cooling OperationOC277-25 DRY OperationDRY YESOC277-26 Heating OperationOC277-27 Microprocessor ControlOutline of Microprocessor Control How to operate OC277-28Indoor Unit Control Compressor controlOC277-29 Start conditionCoil frost protection Termination conditionsOC277-30 Auto vane controlSwing Auto ReturnDetecting abnormalities in the outdoor unit OC277-31Range a Range B Range C OC277-32 DRY operation time chart How to operateDRY operation OC277-33 Heat operation time chart OC277-34Heat operation Display in Heat operationOC277-35 Overheat protectionBooster heater control Overheat preventionOC277-36 Indoor coil temperature abnormality detectionDefrosting operation Initial mode How to operate Mode changeTemperature range OC277-37COOL/DRY operation OC277-38Auto return Timer operation Timer functionOC277-39 Test run Before test runEmergency operation OC277-40Before emergency operation Dip switch functions On remote controller boardOC277-41 On indoor controller boardFan motor max. rotational frequency Service Ref OC277-42PCH24GK PCH30GK PCH36GK PCH42GK SW7 OFF PCH36, 42GKRemote Controller Display Abnormality Trouble ShootingOC277-43 When malfunction occurs during operation For group control using one remote controllerOC277-44 Example Check Unit code addressOC277-45 Wrong Wiring on Site OC277-46Cool HeatOC277-47 Other Troubles and CausesOC277-48 How to check the partsPCH OC277-49 System Control OC277-50Variety of System Control Functions PAC-SA89TA-EGroup Control with a Single Remote Controller How to wireHow to set unit-address OC277-51Control Using TWO Remote Controllers Remote ON-OFF and Individual Remote ControlsHow to set SW17-7 See Figure Remote controller LCD indicationIndividual Control by Grouping the Remote Controllers Basic wiringSwitch function of remote ON-OFF switch OC277-53Multiple Remote Control Display Timer Operation or the Operation by AN External SignalOC277-54 Auto Restart FunctionDisassembly Procedure PCH24GK Operating ProcedureOC277-55 Removing the air intake grilleOC277-56 Removing the fan motorRemoving the sirocco fan Removing the side panelOperating Procedure Photos OC277-57Removing the vane motor Removing the Indoor coil thermistorOC277-58 Removing the drain panRemoving the guide vane Remove the intake grilleRemoving the support heater OC277-59Removing the heat exchanger OC277-60 Parts ListStructural Part PCH24GK OC277-61 OC277-62 Structural Part PCH30GK PCH36GK PCH42GKOC277-63 OC277-64 FAN and Heater Parts PCH24GKOC277-65 FAN and Heater Parts PCH30GK PCH36GK PCH42GKOC277-66 Electrical Parts PCH24GK10 PCH30GK PCH36GK PCH42GKOptional Parts TimerOC277-67 PAC-SC32PTA Weekly Timer Setting Display OC277-68Names and functions SET Back DisplayTimer Adapter Multiple Remote Controller AdapterOC277-69 Refrigerant PipesSpecifications are subject to change without notice