Toshiba Carrier TCB-IFDMR01UP-UL Manual Del Usuario página 37

7-9. Sensor Connections
Installation Sensor holders MUST be brazed to the DX COIL to ensure reliable temperature sensing.
Follow the information in the Dx-coil controller Installation Manual for details.
Wire TC1, TC2, TC and TA, TF which have a 24'7" (7.5 m) cable are combined in the Dx-coil controller.
Connections If these Sensors are removed during installation ensure the sensors are reconnected to the Dx-coil
controller main PCB (MCC-1777) as shown below:
• TC1 Sensor (BRN Plug [2 Pin]) > MCC-1777 CN100 (BROWN Socket [2 Pin])
• TC2 Sensor (BLK Plug [2 Pin]) > MCC-1777 CN101 (BLK Socket [2 Pin])
• TCJ Sensor (RED Plug [2 Pin]) > MCC-1777 CN102 (RED Socket [2 Pin])
• TF Sensor (GRN Plug[2 Pin]) > MCC-1777 CN103 (GRN Socket [2 Pin])
• TA Sensor (YEL Plug[2 Pin]) > MCC-1777 CN104 (YEL Socket [2 Pin])
Take care to re-connect them correctly. The cables should be installed with a U-bend at Sensor ends
to stop water dripping into components.
The sensor cables vinyl tube can withstand up to 221°F (105°C) be careful to keep clear of high
temperature parts. The extension cables' connectors are not IP rated. Ensure that they are located
within the AHU.
If these Sensors needs to extend, following the below cable specifi cation(locally sourced):
• Cable Specification : VFF, 01 - 0.2 in² (0.3 - 0.5 mm²)
• Available Extend Length : Max. 4'5" (5 m) (Total : 41' (12.5 m))
Take care to connect them correctly and carefully handle and prepare the extend cable to prevent
getting such as electrical noise, water and dust.
TA, TF Sensor The TA, TF sensor which is combined in the Dx-coil controller must be located right position for
position TOSHIBA control, not demand control. The cooling/heating demand is determined from the DDC.
Following the below example picture:
Return air only
Fresh air only
FA mixed with RA
Heat recovery coil
Please confirm specification of Heat
Recovery Exchanger and apply within
its specification.
Each Dx-Type Design
Cooling mode "Coil on Air" temp.
Heating mode "Coil on Air" temp.
TA
AHU
Supply Air
Return Air
TA sensor
Fan supply
Dx coil
position
AHU
Fresh Air
Supply Air
Return Air
Fan supply
TA sensor
Dx coil
position
TA sensor
Fan Return
position
AHU
Exhaust Air
Return Air
Supply Air
Fresh Air
Fan supply
Heat Recovery
Dx coil
Exchanger
MUST follow the specifi ed temperature range below.
Guidline
(Heating & Cooling)
Control TA or DDC
59 - 75°F WB
(64 - 90°F DB)
54 - 82°F DB
(Pull down to 45°F)
*1: TF sensor can only be used with SMMS-u and SMMS∞.
DDC
AHU
Fresh Air Supply Air
TA sensor
position
Fan Return
AHU
Exhaust Air
Return Air
Supply Air
Fresh Air
TA sensor
Heat Recovery
Fan supply
Dx coil
position
Exchanger
HP(TA) HP(TF)
(Heating & Cooling)
TF or DDC
50 - 90°F WB
(66 - 115°F** DB)
14 - 59°F DB
– 35 –
TF
Fan supply
AHU
Supply Air
Return Air
TF sensor
TA sensor
Dx coil
position
position
Fan supply
AHU
Fresh Air Supply Air
TF sensor
TA sensor
position
Dx coil
position
Fan supply
AHU
Fresh Air
Supply Air
Return Air
TF sensor
TA sensor
Dx coil position
position
TA sensor position shall be installed after the mixing
air of FA & RA.
Fan Return
Fan supply
AHU
Exhaust Air
Return Air
Fresh Air Supply Air
TA sensor
Heat Recovery
Dx coil TF sensor
position
Exchanger
position
EN