Installation instructions Danfoss heat pump DHP-R VMBMD302
Table of contents DHP-R 1 Important information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.1 1.2 1.3 2 Refrigerant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Noise and vibrations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1 Important information ⚠⚠ This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety. ⚠⚠ Children should be supervised to ensure that they Anyone with symptoms of poisoning from the vapour must immediately move or be moved into the fresh air.
1.3 Electrical connection ⚠⚠ The electrical installation must only be carried out by an authorized electrician (and must follow applicable local and national regulations). The electrical installation must be carried out using permanently routed cables. It must be possible to isolate the power supply using an all-pole circuit breaker for the intended current. For information regarding maximum load for externally connected devices, see electrical installation instructions.
2 Heat pump information 2.1 Components 9 5 4 10 6 11 17 3 16 15 13 18 7 8 1 12 2 20 1 Coolant out (from HP) 2 Heat return (return line) 3 Return line hot-gas exchanger 4 Supply line hot-gas exchanger 5 Heat supply (supply line) 6 Coolant in (to HP) 7 Lead-in for communication cable 8 Lead-in for incoming supply and sensor 9 Supply pipe sensor 10 Condenser with draining for prim. side.
2.2 Pipe connections Connection diameter 300 mm Brine Heat De-superheater DHP-R 20 35 28 28 DHP-R 26 42 28 28 DHP-R 35 42 35 28 DHP-R 42 42 35 28 DHP-R 21H 35 28 28 DHP-R 25H 35 28 28 300 mm 50 mm 1490 mm (with support legs at highest level) 500 mm When installing in confined spaces, pipe routing on the rear of the heat pump can be facilitated by connecting the pipes before the pump is put in position. See the figure below for an example on how the pipes can be routed.
3 Drilling holes for brine pipes 4 • Make holes in the walls for the entry pipes (1) for the coolant pipes. Follow the dimensions and connection diagrams on pages 7-8. • The output and input coolant pipes must have wall lead-ins. • If there is a risk of infiltration by ground water, special lead-ins must be used. • Install the entry pipes (1) so that they incline slightly downwards. The incline should be at least 1 cm per 30 cm.
5 Piping installation 5.2 ⚠⚠ To prevent leaks ensure that there are no stresses in the connecting pipes! • Ensure that the pipe installation is carried out in accordance with the dimensions and connection diagrams. • Pipe installation must be carried out by an authorized installer. ⚠⚠ NOTE! It is extremely important that the heating system is completely bled. ⚠⚠ NOTE! Bleed valves must be installed where necessary. 5.1 Heating system supply pipe and return pipe • Install a filter (max mesh size 0.
6 Electrical Installation 6.1 Electrical connection ⚠⚠ The electrical installation must only be carried out by an authorized electrician (and must follow applicable local and national regulations). The electrical installation must be carried out using permanently routed cables. It must be possible to isolate the power supply using an all-pole circuit breaker for the intended current. For information regarding maximum load for externally connected devices. see electrical installation instructions.
6.4 Connecting hot water sensor • Auxiliary modules ⚠⚠ The two separate 24 VAC circuits must never be connected to each other or to protective ground. Hot water sensor PT1000 Connect the hot water sensor to the designated terminal block. The sensor should be positioned a third way up from the bottom in the water heater which is supplied with incoming cold water. See separate manual for the control system. 6.5 6.
6.14 Locations of the switches 7 Brine installation 7.1 Brine pipes and expansion tank • Install a filter (max mesh size 0.7 mm) in the input coolant pipe to protect the unit against foreign particles. • Install the input coolant pipe with all the accompanying components. • Install the output coolant pipe with all the accompanying components. • Supply both the pipes with diffusion sealed condensation insulation.
13 Stop both the pumps and immediately close valve 1 and 2. 14 Open valve 3 and disconnect the filling hoses. 15 Open valve 6 and pressurise the system, and vent via valve 1. Pressurise to max 1.5 bar. 16 Close valve 6. 17 Set switch S1 and S2 to Auto (compressor and brine pump). 18 Clean the strainers after filling. 8 Start up ⚠⚠ The installation may only start operation if the heating system, any hot water tanks and the coolant circuit are filled. Otherwise the pumps can be damaged.
9 Handover 9.1 Installation and commissioning carried out by: As user please ensure that the installer fills in the following information to facilitate servicing. PIPE INSTALLATION Date . . . . . . . . . . . . . . . . . . . . . . . . . . . . Company . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Name . . . . . . . . . . . . . . . . . . . . . . . . . . . Tel. No. . . . . . . . . . . . . . . . . . . . .
10 Troubleshooting Alarm In the event of an error message try restarting the installation using the reset button on the control panel. If restarting the heat pump does not help try rectifying the problem using the table below. Message Meaning Cause Remedy LOW PRESS ERROR Low pressure error - The compressor stops and there is no hot water production. Not enough anti-freeze in the coolant system. Air in the brine system. Blocked filter in the brine system.
11 Technical data Brine to water heat pump Refrigerant DHP-R Type Amount kg 20 26 35 42 21H 25H R407C 3,4 R407C 3,5 R407C 3,6 R407C 4,2 R134a 2,7 R134a 2,9 Test pressure MPa 3,4 3,4 3,4 3,4 3,4 3,4 Design pressure MPa 2,95 2,95 2,95 2,95 2,45 2,45 Scroll POE Scroll POE Scroll POE Scroll POE Scroll POE Scroll POE 400 11,7 400 14,2 400 17,9 400 14,2 400 17,9 Compressor Type Oil Electrical data 3-N~50Hz Main supply Rated power compressor Volt kW 400 8,6 Rated p
If these instructions are not followed during installation, operation and maintenance Danfoss Heat Pumps’ liability according to the applicable warranty is not binding. Danfoss Heat Pumps AB • Box 950 • SE-671 29 Arvika www.danfoss.
