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Description:
MC 785T-DF (ALFANET) Thermostat
Type:
MANUAL
File:
Do042036 MC785T-DF v11 EN.wpd
Software: MC785T-DF Version: V2.00
VDH Products BV - Roden - Holland
MC 785T-DF
MC 785T-DF ALFANET
panel and wall mounting
Operating Manual
Number of pages:
By:
AAD
Signed:
Doc.no.:
20
Version:
Date:
29-01-2014
File:
042036
V1.1
Doc'04
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Table of Contents
Related Manuals for VDH Products MC 785T-DF
Summary of Contents for VDH Products MC 785T-DF
- Page 1 Operating Manual Description: MC 785T-DF (ALFANET) Thermostat Doc.no.: 042036 Type: MANUAL Number of pages: Version: V1.1 File: Do042036 MC785T-DF v11 EN.wpd Date: 29-01-2014 Software: MC785T-DF Version: V2.00 Signed: File: Doc'04 VDH Products BV - Roden - Holland...
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Page 2: Table Of Contents
Dimensions ..............18 The information contained in this document is assumed to be accurate. However, VDH Products BV does not accept any liability for eventual mistakes or errors, and retains the right to adapt or change this document without notice. -
Page 3: Technical Specifications
Version: V1.1 MC 785T-DF Client: General Page: 3 of 20 Technical specifications General Type : MC 785T-DF Wall mounting: Housing : Grey plastic Material : Polystyrol 454h KG 2 natur BASF Dimensions : 213 x 180 x 85mm (whd) Front... -
Page 4: In- And Outputs
(NO, 250Vac/10A not inductive) RY5 Defrost (NO-NC, 250Vac/10A not inductive) Functional specifications The MC 785T-DF has three different operating modes. These are: Mode 0 - 2x cooling Mode 1 - cooling/heating Mode 2 - 2x heating The MC 785DF has an analog P(I)-output with a range of 0/+10 Vdc. The function of this output is programmable as measuring signal, setpoint signal or a P(I) output for the cooling or heating. -
Page 5: Control Of The Thermostat
Operating Manual Document no.: 042036 Version: V1.1 MC 785T-DF Client: General Page: 5 of 20 Control of the thermostat Normally the display shows the temperature of the control sensor(s). Read-out of the sensors. Press the SENS key. The display shows the temperature of sensor 1. The LED 1 next to the SENS key will start to flash, to indicate that sensor 1 is being shown. -
Page 6: Programming The Day And Night Switching Times
Operating Manual Document no.: 042036 Version: V1.1 MC 785T-DF Client: General Page: 6 of 20 Programming the DAY and NIGHT switching times. Press the SET-CLOCK key. The MO LED (monday) will flash, the DAY LED will flash and the switch-on time of the DAY stand for Monday will appear in the time display. This time can be varied by using the UP and DOWN keys. -
Page 7: Parameter Table
Operating Manual Document no.: 042036 Version: V1.1 MC 785T-DF Client: General Page: 7 of 20 Parameter table. Number Description Range Value Default P 01 Function thermostat 0..2 0 = 2x cooling 1 = cooling/heating 2 = 2x heating P 02... - Page 8 Operating Manual Document no.: 042036 Version: V1.1 MC 785T-DF Client: General Page: 8 of 20 Number Description Range Value Default P 50 Defrost 0..2 0 = none 1 = natural 2 = electric/hotgas P 51 Defrost-interval 1..99 hours P 52 Maximum defrost time 1..99...
- Page 9 Operating Manual Document no.: 042036 Version: V1.1 MC 785T-DF Client: General Page: 9 of 20 Number Description Range Value Default P 90 Control off when all control sensors are defective 0 = no, 1 = yes P 91 Control off at external alarm...
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Page 10: Operation Of Relay Outputs
Operating Manual Document no.: 042036 Version: V1.1 MC 785T-DF Client: General Page: 10 of 20 Operation of relay outputs Operation of cooling and heating. 2x cooling: Cooling 1 (RY2) switches on if the temperature is higher than the setpoint + offset_1 + differential_1 and switches off if the temperature is lower than setpoint + offset_1. -
Page 11: Operating The Defrost
Operating Manual Document no.: 042036 Version: V1.1 MC 785T-DF Client: General Page: 11 of 20 Operating the defrost. There are three different methods for defrost. No defrost. Natural defrost. Before defrost is started, a check is made to see if the temperature of the defrost-sensor is lower than the defrost-release-temperature (P 54). -
Page 12: Sensor Calibration
Operating Manual Document no.: 042036 Version: V1.1 MC 785T-DF Client: General Page: 12 of 20 Sensor calibration The sensors can be calibrated with the parameters P14 (Sensor-1), P15 (Sensor-2), P16 (Sensor-3) and P17 (Defrost Sensor-4). Should a sensor indicate 0.2°C too much, for example, then the corresponding offset-parameter must be set at -0.2°C. -
Page 13: Front Views
Operating Manual Document no.: 042036 Version: V1.1 MC 785T-DF Client: General Page: 13 of 20 Front views Front view of MC 785T - DF drawing 950393 Front view of MC 785T-DF panel mounting. Drawing 970050... -
Page 14: Connection Diagrams
Operating Manual Document no.: 042036 Version: V1.1 MC 785T-DF Client: General Page: 14 of 20 Connection diagrams Connection diagram MC 785T-DF wall mounting. Drawing 960563... - Page 15 Operating Manual Document no.: 042036 Version: V1.1 MC 785T-DF Client: General Page: 15 of 20 Connection diagram MC 785T-DF ALFANET wall mounting. Drawing 030220...
- Page 16 Operating Manual Document no.: 042036 Version: V1.1 MC 785T-DF Client: General Page: 16 of 20 Connection diagram MC785T-DF panel mounting. Drawing 991296...
- Page 17 Operating Manual Document no.: 042036 Version: V1.1 MC 785T-DF Client: General Page: 17 of 20 Connection diagram MC785T-DF ALFANET panel mounting. Drawing 030216...
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Page 18: Dimensions
Operating Manual Document no.: 042036 Version: V1.1 MC 785T-DF Client: General Page: 18 of 20 10. Dimensions Dimensions MC 785T-DF wall mount Fibox... - Page 19 Operating Manual Document no.: 042036 Version: V1.1 MC 785T-DF Client: General Page: 19 of 20 Dimensions MC 785T-DF wall mount with door Fibox...
- Page 20 Operating Manual Document no.: 042036 Version: V1.1 MC 785T-DF Client: General Page: 20 of 20 Dimensions MC785T-DF panel mount drawing 961271 -.-.-.-.-.-.-.-.-.-...