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DVCompact
With Reversible Heat Pump Section
Operation and Maintenance Instructions
© 2016 Copyright UAB Systemair
UAB Systemair can accept no responsibility for possible errors in catalogues, brochures and other printed
material. UAB Systemair reserves the right to alter its products without notice. This also applies to
products already on order provided that such alterations can be made without sub sequential changes
being necessary in specifications already agreed.
All rights reserved.
211118-EN_GB
Document in original language
2016-08-31 A001
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Table of Contents
Related Manuals for SystemAir DVCompact Series
Summary of Contents for SystemAir DVCompact Series
- Page 1 UAB Systemair can accept no responsibility for possible errors in catalogues, brochures and other printed material. UAB Systemair reserves the right to alter its products without notice. This also applies to products already on order provided that such alterations can be made without sub sequential changes being necessary in specifications already agreed.
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Page 2: Table Of Contents
Contents 1 Warnings........................... 1 2 Refrigerant control/reporting ....................... 1 3 Service............................2 4 Product description ........................2 4.1 Description of components....................3 4.1.1 Supply and extract air fans ..................4 4.1.2 Supply and extract air filters..................4 4.1.2.1 Pressure guard filters..................4 4.1.3 Differential pressure transmitters................ -
Page 3: Warnings
• These safety regulations only apply to products supplied by Systemair UAB. It is the installer’s responsibility to carry out a comprehensive safety assessment of the unit, as well as preparing safety regulations so that user is able to secure the unit such that it does not cause harm to people, animals, material or environment. -
Page 4: Service
The heat pump system is delivered with the R–410a refrigerant in the circuit. Internal controller pCOOEM controls all safety functions and capacity of digital scroll compressors (DVCompact DXR–10, DVCompact DXR–15 comes only with one compressor). Signals to start heating or cooling, as well a capacity signal, DVCompact Operation and Maintenance Instructions Systemair Sverige AB 211118... -
Page 5: Description Of Components
Position Description Extract air fan Supply air fan Extract air filters Supply air filters Frequency converter, supply air fan Frequency converter, extract air fan Differential pressure transmitter (CAV), extract air DVCompact Operation and Maintenance Instructions Systemair Sverige AB 211118... -
Page 6: Supply And Extract Air Fans
Operation of the rotary heat exchanger is automatic and depends on the set temperature. The heat exchanger is removable for cleaning and maintenance. 4.1.4.1 Rotor motor The motor is controlled by a 0–10 V analog control signal. DVCompact Operation and Maintenance Instructions Systemair Sverige AB 211118... -
Page 7: Rotation Guard
• Heating mode — coil in the extract air compartment is an evaporator, coil in the supply air compartment is a condenser. • Cooling mode — coil in the extract air compartment is a condenser, coil in the supply air compartment is an evaporator. DVCompact Operation and Maintenance Instructions Systemair Sverige AB 211118... -
Page 8: Unit Control
• Up arrow Navigate between the display screens or increase the value shown on the display • Down arrow Navigate between the display screens or decrease the value shown on the display DVCompact Operation and Maintenance Instructions Systemair Sverige AB 211118... -
Page 9: Main Screen
The individual screens are shown below: BSynoptic — Circ. DZ2:Prev —10% 70.0° 5.6barg→ 10.0° EZ8:LoDscgP 70.2° 5.6barg→ 10.0° Fig. 5 Compressor status 1. Discharge temperature zone and preventive action. 2. Discharge temperature. DVCompact Operation and Maintenance Instructions Systemair Sverige AB 211118... - Page 10 Waiting time will be displayed during this phase. • On - valve in regulation. • Init - driver initialization. 5. Evaporating pressure and temperature. DVCompact Operation and Maintenance Instructions Systemair Sverige AB 211118...
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Page 11: Information Menu
NO7–General alarm: NO9–Defrost: NO10–Discharge al.: Info — Output Shows out of envelope position in %. Shows compressor speed in %. Y1–Envelop: 0.0% Y2–Comp.fbk: 100% Shows expansion valve opening in %. Y3–ExV perc. DVCompact Operation and Maintenance Instructions Systemair Sverige AB 211118... - Page 12 Capacity reference 48.5% Info — Input Shows digital inputs ID1–Alarm reset: ID2–Cooling: Cool ID3–Defrost: ID4–Remote ON: Info — Dig.In Shows the status of alarms. ID7–Comp.alarm:: ID8–Phase alarm: ID9–Low press.: ID10–High press. DVCompact Operation and Maintenance Instructions Systemair Sverige AB 211118...
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Page 13: Service Menu
Settings in Manual mode menu allow to control components manually. Only authorized personnel should perform changes in Manual mode. Manual control of components is necessary for annual maintenance to test safety and control functions or after replacement of components. DVCompact Operation and Maintenance Instructions Systemair Sverige AB 211118... -
Page 14: Other Settings
Settings that are not shown or explained in this document are pre-configured at the factory and must not be changed. 5.1.5 Alarms — Heat pump system Active alarms can be checked by pressing alarm button. DVCompact Operation and Maintenance Instructions Systemair Sverige AB 211118... -
Page 15: Alarm Data Log
Probe U1 broken or discon- AL001 None nected Probe U2 broken or discon- AL002 Circuit OFF nected Probe U4 broken or discon- AL003 Circuit OFF nected Probe U5 broken or discon- AL004 Circuit OFF nected DVCompact Operation and Maintenance Instructions Systemair Sverige AB 211118... - Page 16 Parameter Maintenance request compressor AL027 None Parameter Maintenance request compressor AL028 None Parameter AL029 None Clock alarm AL030 None Memory expansion damaged AL031 BMS Offline A — automatic, M — manual DVCompact Operation and Maintenance Instructions Systemair Sverige AB 211118...
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Page 17: Control Of The Air Handling Unit
Mounting holes Connection block Connection to yellow cable Connection to orange cable Connection to red cable Connection to brown cable Connection to black cable DVCompact Operation and Maintenance Instructions Systemair Sverige AB 211118... -
Page 18: Commissioning
2222, to change default setting) figure Time: 12.46 Check and make sure that correct time and date is Date: 2010–03–12 displayed, if not change the settings Weekday: Friday figure DVCompact Operation and Maintenance Instructions Systemair Sverige AB 211118... -
Page 19: Menu Overview Operator/Service Level
Below menu overview shows both the Operator and Service level. The overview of the parts unique to the Service level in below table are marked with grey background color. To logon to the Service level use code 2222 under Access rights. DVCompact Operation and Maintenance Instructions Systemair Sverige AB 211118... - Page 20 Shows the status of the frost protection protection function Active Shows the status of the cooling recovery function Cooling recovery External set Shows the status of the point external set point Not active DVCompact Operation and Maintenance Instructions Systemair Sverige AB 211118...
- Page 21 Frost Shows the actual water protection temperature in the water heating battery. (Only visible for Actual: ºC HW units) Shows the actual exhaust air Exhaust air temperature. temp Actual: ºC DVCompact Operation and Maintenance Instructions Systemair Sverige AB 211118...
- Page 22 Only visible if the unit is m³/h configured for Flow control Setp.: m³/h Flow control Set the normal (1/1) and reduced (1/2) airflow for the extract air fan Setp 1/1: 1100 m³/h Setp 1/2: m³/h↓ DVCompact Operation and Maintenance Instructions Systemair Sverige AB 211118...
- Page 23 "Pressure control" (VAV) Pressure Set the external pressure set control EAF point for normal speed (1/1) and reduced speed (1/2) for the Setp 1/1: supply air fan. Setp 1/2: DVCompact Operation and Maintenance Instructions Systemair Sverige AB 211118...
- Page 24 The time the extended running is active is monitored in "Time in ext. Running". It's also possible to set a time here as well in order to shorten the initial set period. DVCompact Operation and Maintenance Instructions Systemair Sverige AB 211118...
- Page 25 "Auto, Manual full speed, Manual half speed or Manual EAF: Auto Manual set: Heating Set the heating to Auto, Manual or Off Auto Set the manual output 0-100% Manual set: 100.0 DVCompact Operation and Maintenance Instructions Systemair Sverige AB 211118...
- Page 26 → Control temp Supply air Set P-band and I-time for the control Supply air control function P-band: Note: 33.0°C See Corrigo E ventilation 2.3 I-time: 100.0 manual for deeper explanation DVCompact Operation and Maintenance Instructions Systemair Sverige AB 211118...
- Page 27 Alternatively Pressure control if that I-time: 10.0 configuration is chosen Min. output: → Alarm → Alarm limits Set the alarm limits and allowed settings deviations for the different functions DVCompact Operation and Maintenance Instructions Systemair Sverige AB 211118...
- Page 28 Room temp min. activation of the free cooling 18°C function Set the lower room temperature limit. The temperature needs to be above this value for the free cooling function to stay active DVCompact Operation and Maintenance Instructions Systemair Sverige AB 211118...
- Page 29 Set active to Never, Always or If time channel off. Set what should be regulated. Select type between Fan or Mixing dampers Set the min. time the unit is activated by the CO2/VOC demand function DVCompact Operation and Maintenance Instructions Systemair Sverige AB 211118...
- Page 30 “LEFT” arrow (press 2 times) on the control panel. Actual level: None Standard code from factory to enter service level is 2222. Back to operator level: 1111 DVCompact Operation and Maintenance Instructions Systemair Sverige AB 211118...
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Page 31: Free Cooling Description
OK and UP/DOWN. To abort and go back to start menu press cancel and then press LEFT. See Commissioning record for an overview of possible alarms. DVCompact Operation and Maintenance Instructions Systemair Sverige AB 211118... -
Page 32: Maintenance
A thorough and recurrent maintenance is a must for a valid guarantee. DVCompact Operation and Maintenance Instructions Systemair Sverige AB 211118... -
Page 33: Cleaning The Unit
Closing mechanisms should be lubricated at least once a year. Synthetic door hinges are service free. Seals around inspection doors should be cleaned at least once a year. It is recommended to treat the seals DVCompact Operation and Maintenance Instructions Systemair Sverige AB 211118... -
Page 34: Changing Supply/Extract Air Filter
The factory installed filters are of filter quality M6 or F7 for both the supply air and extract air filter. The filter type is labelled on the top of the filter. New filters can be ordered from Systemair UAB. Operation time between filter changes depends on the air pollution at the installation site. A differential pressure switch indicates when it’s time to change the filters. -
Page 35: Checking The Fans
• Listen to the sound coming from the motor bearings. It should make a slight purring sound. A scraping or pounding sound can indicate that the bearings are damaged and should be changed. • Check if the rubber anti-vibration mountings are not damaged and intact. DVCompact Operation and Maintenance Instructions Systemair Sverige AB 211118... -
Page 36: Checking The Compressor
6.8.2 Inspection • Check the coil fins for any damage; • Check if refrigerant is not leaking; • Check the dip dray and drain, clean if necessary; DVCompact Operation and Maintenance Instructions Systemair Sverige AB 211118... -
Page 37: Troubleshooting
The impellers are still a potential hazard even after power cut-off because of after-run that can last up to 5 minutes. DVCompact Operation and Maintenance Instructions Systemair Sverige AB 211118... -
Page 38: Disposal And Recycling
9.2 Disposal of the air handling unit No additional safety measures are required for the disposal of the air handling unit. Contact your local waste management company for more information. DVCompact Operation and Maintenance Instructions Systemair Sverige AB 211118... - Page 39 Systemair Sverige AB reserves the right to make changes and improvements to the contents of this manual without prior notice. Systemair UAB Linų st. 101 LT–20174 Ukmergė, LITHUANIA Phone +370 340 60165 Fax +370 340 60166 www.systemair.com...
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