7.11 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 7.5m 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 (BLOWN Socket [2 Pin])
・ TC2 Sensor (BLK Plug [2 Pin]) > MCC-1777 CN101 (BLK Socket [2 Pin])
・ TC 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 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 specification(locally sourced):
・ Cable Specification : VFF, 0.3-0.5 mm2
・ Available Extend Length(m) : Max. 5.0m (Total: 12.5m)
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
position
for TOSHIBA control, not demand control. The cooling/heating demand is determined
from the DDC. Following the below example picture:
TA
DDC
TF
Return air only
Fresh air only
FA mixed with RA
Heat recovery coil
AHU
Return Air
Supply Air
TA sensor
position
Dx coil
Fan supply
Fresh Air
Supply Air
TA sensor
position
Fres h Air
Supply Air
TA sensor
position
Retun Air
Fres h Air
Supply Air
TA sensor
position
Retun Air
Exhaust Air
Fresh Air
Supply Air
TA sensor
position
Retun Air
Exhaus t Air
Fres h Air
Supply Air
TA sensor
position
Retun Air
TF sensor
position
Fres h Air
Supply Air
Retun Air
Exhaus t Air
TF sensor
position
Fresh Air
Supply Air
TA sensor
position
TF sensor
position
AHU
Supply Air
TA sensor
position
TF sensor
position
Return Air
Dx coil
Fan supply
Dx coil
Fan supply
AHU
AHU
Dx coil
Fan supply
Dx coil
Fan supply
AHU
AHU
Dx coil
Fan supply
Fan Return
Heat Recovery
Exchanger
Fan Return
Heat Recovery
Exchanger
Dx coil
Fan supply
AHU
AHU
AHU
TA sensor
position
Fan Return
Heat Recovery
Exchanger
Dx coil
Fan supply
TA sensor position shall be installed after the mixing air of
FA & RA.
Please confirm specification of Heat
Recovery Exchanger and apply
within its specification.
※
Each Dx-Type Design
MUST
follow the specified temperature range below.
*1: TF sensor can only be used with SMMS-u and SMMS
ꝏ
.
15 - 24 ̊C WB
15 - 32 ̊C WB
Heating mode "Coil on Air" temp. 12 - 28 ̊C DB
(Pull down to 7 ̊C)
---
---
-10 - 15 ̊C DB
Control
TA or DDC
TF or DDC
Cooling mode "Coil on Air" temp.
15 - 24 ̊C WB
10 - 32 ̊C WB
(18 - 32 ̊C DB)
(18 - 32 ̊C DB)
(18 - 43 ̊C DB)
(19 - 46 ̊C** DB)
Guidline
HP(TA)
(Heating & Cooling)
Cooling Only*
HP(TF)
(Heating & Cooling)
Pattern A
Pattern B
P38
Содержание RBM-A101UPVA-E
Страница 21: ...P19 ...
Страница 45: ...9 Cable specifications P43 ...
Страница 46: ...10 Modbus setting method P44 ...
Страница 50: ...12 Dx coil Controller Dx valve kit Dimensions P48 ...
Страница 51: ...12 Dx coil Controller Dx valve kit Dimensions P49 ...
Страница 52: ...13 Wiring Diagram P50 ...
Страница 53: ...P51 ...
Страница 58: ...VRF Dx coil interface Design Guideline May 2022 Third Edition DG003 03 ...