Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Related Manuals for Danfoss DTW 300 SP
Summary of Contents for Danfoss DTW 300 SP
- Page 1 Installation, Service and User Manual DTW 300 SP VMGFK202...
- Page 2 If these instructions are not followed during installation and service, Danfoss A/S liability according to the applicable war- ranty is not binding. Danfoss A/S retains the right to make changes to components and specifications without prior notice. © 2011 Copyright Danfoss A/S.
-
Page 3: Table Of Contents
Contents About this document and decals ..........3 Introduction ..................3 Symbols in documents ..............3 Symbols on decals ................ 3 Important information ..............4 General safety precautions ............4 Refrigerant safety precautions ..........5 Electrical connection safety precautions ......5 Safety precautions for home-owners ........ -
Page 5: About This Document And Decals
• User instructions (operational instructions for home-owners) The instructions are also available for download at the following address: www.documentation.heatpump.danfoss.com Symbols in documents The instructions contain different warning symbols, which, together with text, indicate to the user that there are risks involved with actions to be taken. -
Page 6: Important Information
Important information General safety precautions Caution! This product is not intended for persons (including children) with reduced physical, sensory or psychological capacity, or who do not have knowledge or experience, unless supervised or they have received instructions on how the apparatus functions from a safety qualified person. Caution! The heat pump must be located on a stable base. -
Page 7: Refrigerant Safety Precautions
Caution! • Before installation, decide a safe and reliable way of conveying the unit. • To prevent injury, a mixing valve must be installed on the outlet if the hot water temperature may rise over 65°C, for example, when using solar energy solutions. •... -
Page 8: Safety Precautions For Home-Owners
Safety precautions for home-owners DANGER! The heat pump cover must only be opened by authorised service technicians. Caution! This product is not intended for persons (including children) with reduced physical, sensory or psychological capacity, or who do not have knowledge or experience, unless supervised or they have received instructions on how the apparatus functions from a safety qualified person. -
Page 9: Components
Components The component image below shows diagrammatically how the air source heat pump (from now on also called the unit) looks inside. Figure 1. Exploded view, unit components Table 1. Parts Name Position Description Position Description Air outlet Top cover Filter Electronic control box Evaporator... - Page 10 Position Description Position Description Drain Upper tank sensor (T5U) Air inlet Lower tank sensor (T5L) Note! All the diagrams and figures in this manual are for explanation purposes only. They may be slightly different, depending on model, from the real product you have purchased. 8 –...
-
Page 11: Accessories
Accessories Table 2. Accessories (included in delivery) Accessory Name Purpose Quantity Installation, service, and user man- Installation, service, and user instruction (this manual) Non-return valve Prevent water from flowing back Adaptor Drain condensate water Installation, Service and User Manual VMGFK202 – 9... -
Page 12: Installation Location
Installation Location Ensure that the following applies for the installation location: • Enough space for installation and maintenance shall be preserved. • The circulating air for each unit must be more than 700 m • The air inlet and outlet should be free from obstacles and impact from strong wind. •... -
Page 13: Carrying The Unit Onto The Site
≥ 800 mm ≥ 600 mm ≥ 600 mm 650 mm Figure 3. Installation space continued (distances) Figure 4. Dimensions Note! The specification of 800 mm free space above the unit is only a recommendation if the room size allows this arrangement. The reason is to provide sufficient air flow and air exchange through the unit´s inlet and outlet. -
Page 14: Piping Connection
Piping Connection Figure 5. Principal Piping Connection Position Explanation Position Explanation Upper condensate outlet Valve stem Lower condensate outlet Expansion vessel (if required) Hot water tap Solar water inlet Solar sensor Solar water outlet Drain barrel Drain pipe Temperature and pressure valve Mixing valve Anode rod Water inlet... -
Page 15: Temperature And Pressure Valve
Temperature and pressure valve The specification of the valve connecting (internal) thread is DN20 (RC3/4”). After installation, it must be confirmed that the drainpipe outlet is exposed in the air. If a flexible drainpipe is jointed to the pressure relief orifice of this valve, it must be confirmed that the flexible drainpipe is directed downwards vertically and exposed in the air. - Page 16 • The CN17 ON/OFF port is used for receiving the control signal of the solar energy water heating system, this signal must be a potential free switch signal. When the unit is sending a closing signal, the system will be blocked for operation and cannot open to heat;...
-
Page 17: Duct Connections
Duct Connections Note! When connecting flexible air ducts to the unit, the airflow capacity in system will decrease. Example of air inlet (2) and outlet (1) without flexible air ducts. Position Explanation Air outlet Ø 190 mm Air inlet Figure 7. Air inlet and outlet without flexible air ducts Flexible air ducts can be connected to both the air outlet (1) and air inlet (2), separately, or in combination. - Page 18 Table 3. Flexible Air Duct Description Duct Round duct Rectangle duct Other shaped ducts Dimension (mm) ø 190 190X190 Maximum length 3 m Straight-line pressure ≤2 ≤2 drop (Pa/m) Straight-line length (m) ≤10 ≤10 Bends pressure drop ≤2 ≤2 (Pa) Bends ≤5 ≤5...
- Page 19 Caution! If the unit has a flexible air duct that reaches outside the building, a reliable water-resistant measure must be done on the duct, to prevent water drop from entering the inside of the unit. Ø Position Explanation Outlet Inlet Filter Figure 10.
-
Page 20: Electrical Connection
Electrical Connection Electrical wiring illustration Warning! Electrical installation may only be carried out by an authorised electrician and must follow applicable local and national regulations. 78-100˚C Figure 12. Wiring diagram Position Explanation MTCO Compressor Electrical heater Controller Compressor relay, K1 Electrical heater relay (UE), K2 Connecting external supply voltage DANGER! Electrical voltage! The terminal blocks are live and can be highly dangerous due to the risk of... -
Page 21: Commisioning
Commisioning Before commissioning the system, first check the following items: • Correct installation of piping, wiring, and ducts • Efficient drainpipe open to air • Appropriate insulation protection • Correct earthing • Correct power supply • No obstacle outside/or inside the air inlet or outlet •... -
Page 22: Control System
Control system 10.1 Control panel explanation Position Explanation Display with indicators TEMP-SET Key pad for operation HIGH TEMP FILL WATER ALARM ECONOMY MODE LOCK HYBRID MODE OUTLET TEMP E-HEATER MODE TIMER TIME ON TIME OFF CONFLICT ON\OFF CANCEL MODE TIME TIME CLOCK Figure 13. -
Page 23: Key Pad
Posi- Description Position Description tion TEMP-SET indicator: Shows the temperature set- TIME ON indicator: It is lit when a time for TIME ON ting. It is blank in screen power save mode. Error has been set. Can be set alone, timer starts before codes are displayed here during malfunction or or after 24:00 depending on the value set by user. -
Page 24: Operating Instructions
Operating instructions 11.1 Start up When you power up the unit (by turning on the power supply), initially a buzzer sound will be heard and all indica- tors appear on the display for 3 seconds. If there is no operation from the user for 1 minute, all indicators will go out automatically except the WATER FILL indicator (which will be flashing as a reminder) and the tank’s tempera- ture indicator. - Page 25 Press the CLOCK key again, the minute digit stops flashing and the hour digit starts flashing. CLOCK Press the UP or DOWN key to adjust the hour setting. Press the CLOCK key again or if there is no user operation for about 10 seconds, the flashing will stop and the clock setting is completed.
- Page 26 11.1.4 Setting temperature The temperature displayed is the water temperature in the upper part of the tank. The default setting is 55°C and the range is 38-60°C. Press the UP or DOWN key to increase or decrease the water temperature. When the temperature setting is higher than 50°C, the HIGH TEMP indicator will be displayed as a warning.
- Page 27 Press the UP or DOWN key to adjust the hour setting. Press the TIME ON key again and wait about 10 seconds. The flashing stops and the TIME ON setting is completed. 11.1.6 Cancelling the timer In an unlocked state, press the CANCEL key 1 second and the TIME ON function will be can- celled.
- Page 28 Press the UP or DOWN key to adjust the minute setting. Press the TIME ON key again, the minute digit stops flashing and the hour digit starts. TIME Press the UP or DOWN key to adjust the hour setting. Press the TIME ON key again to confirm, or wait 10 seconds. TIME Press the TIME OFF key, the minute digit on the display starts flashing slowly.
-
Page 29: Operational Status
Press the TIME OFF key again, the minute digit stops flashing and the hour digit starts. TIME Press the “UP” and “DOWN” key to adjust the hour setting. If the operation is inactive for about 10 seconds, the flashing stops and the TIME ON and TIME OFF setting is completed. -
Page 30: Troubleshooting
When running the heat pump in ECONOMY mode and the ambient temperature does not meet the operational conditions (allowed operating range) of the unit, that is, the temperature is less than -7°C or more than +43°C, the unit stops and an LA code will be displayed. Warning code when the current mode is in conflict with the operational conditions for this mode. -
Page 31: Operating Capability
Displaying the error code and water temperature setting alternatively. TEMP-SET If the system is in ECONOMY mode and a malfunction occurs, the system can still be operational by switching to E- HEATER mode, even though it could not reach the expected efficiency. Contact your supplier for help. DANGER! The heat pump cover must only be opened by authorised service technicians. - Page 32 tank, and the bottom one is used to measure the lower water temperature. The lower sensor controls the ON & OFF of the unit, although this temperature is not shown in the display. Position Explanation Outlet Electrical heater Tank coil (solar coil) Inlet Upper tank sensor (T5U) Lower tank sensor (T5L)
- Page 33 • When the self-protection state is active, a buzzer will sound every other minute, the ALARM indicator will flash, and the display indicates an error code and the water temperature alternatively. Press CANCEL for 3 seconds to stop the alarm. When the protection cause is resolved the error code disappears on the display, the buzzer sound stops, and the unit returns to normal operation.
-
Page 34: Legionella Prevention
11.4.9 Restart after long stop Note! When the system is started again after a long time (trial running included), it is normal that the outlet water is unclean. Keep tapping out water and it will become clean after some time. 11.5 Legionella prevention 11.5.1... -
Page 35: Maintenance
Maintenance To preserve optimal performance and prevent mal-functions of the unit, it should be checked and maintainded regularly. Certain maintenance tasks must only be performed by an authorized service technician. Caution! Operation without water in water tank may result in damage of auxiliary e- heater. -
Page 36: Maintenance Tasks For Both Home-Owners And Service Technicians
12.2 Maintenance tasks for both home-owners and service technicians If the unit needs cleaning, moving etc, the tank should be emptied. Close the cold water inlet (1). Open the hot water outlet (2). Open the drainpipe (3). After emptying, remount the drainpipe and close it. •... -
Page 37: Malfunctions And Resolutions
12.4 Malfunctions and Resolutions Table 5. Malfunctions and Resolutions Malfunction Cause Resolution • • The outlet water is cold. The display is Bad connection of power supply; Contact a technician. dark. • • Outlet water is set to a low temperature; Set the outlet water to a higher temperature. -
Page 38: Disposal Instructions
Disposal Instructions Do not dispose this product as unsorted municipal waste. Collection of such waste separately for special treatment is necessary. Do not dispose of electrical appliances as unsorted municipal waste, use separate collection facilities. Contact you local government for information regarding the collection systems available. 36 –... -
Page 39: Technical Data
Technical data Model RSJ-35/300RDN3-B Mode Economy Mode Hybrid Mode E-heater Mode Rated power/AMPS 1500W/6.5A 4300W/18.7A 3000W/13.0A Water-heating capacity 3000W Power supply 220-240V~ 50Hz • Operation control Auto/Manual startup The unit starts automatically if the water temperature is lower than the setting temperature. - Page 40 Model RSJ-35/300RDN3-B Gross weight filled 423kg Fuse (internal electronics) Above performance data at test conditions: • Test temperature 15/12°C(DB/WB), • Water temperature from 15°C up to 45°C. 38 – Installation, Service and User Manual VMGFK202...
- Page 41 VMGFK202...