Ground Source Heat pumps TBW EVI Urban below 50kW

Heat pump with two power stages for heating and domestic hot water with the possibility of passive cooling control. One short closed refrigerant circuit with a pair of quiet Scroll compressors and robust stainless steel plate heat exchangers. Through the connection kit, the circulation pumps can be easily and quickly connected while externally controlling their variable speed.
Use for multi-family dwellings, suburban mixed-use buildings or commercial operations. The Urban range is based on a robust construction quality steel for all parts. High quality, long proven heat pump circuit components extend the life of the heat pump.
As a primary source, the thermal energy of the sun accumulated in the ground through a horizontal collector or geothermal energy through a deep borehole is used. In the collector or borehole, an antifreeze flows which takes the energy of the earth at a low temperature and the heat pump raises this temperature to a temperature usable for heating or hot water.

Heat pump type: TBW 22 EVI 28 EVI 38 EVI 50 EVI
Product sheet
Article nr. WA001351 WA001352 WA001353 WA001354
Heating capacity [ kW ] EN 14511
B0 / W35 (max) 22.7
(11.3 ~ 22.7)
28.9
(14.5 ~ 28.9)
38.9
(19.5 ~ 38.9)
48.3
(24.1 ~ 48.3)
B0 / W35 (min) 11.3
(11.3 ~ 22.7)
14.5
(14.5 ~ 28.9)
19.5
(19.5 ~ 38.9)
24.1
(24.1 ~ 48.3)
B0 / W34 22.7
(11.3 ~ 22.7)
28.9
(14.4 ~ 28.9)
38.9
(19.5 ~ 38.9)
48.2
(24.1 ~ 48.2)
B0 / 55 (max) 22.9
(11.5 ~ 22.9)
29.7
(14.9 ~ 29.7)
40.6
(20.3 ~ 40.6)
49.6
(24.8 ~ 49.6)
B0 / W55 (min) 11.5
(11.5 ~ 22.9)
14.9
(14.9 ~ 29.7)
20.3
(20.3 ~ 40.6)
24.8
(24.8 ~ 49.6)
B0 / W52 23.1 (11.5 ~ 23.1) 29.8 (14.9 ~ 29.8) 40.6 (20.3 ~ 40.6) 49.8 (24.9 ~ 49.8)
Energy Efficiency Parameters and Performance ErP [ middle temperature region ]
Rated nominal heating capacity P rated [ kW ] 22.7 28.9 38.9 48.3
Energy class A+++ A+++ A+++ A+++
SCOP 5.35 5.33 5.10 4.84
Seasonal energy efficiency η [ % ] 214.2 213.2 204.1 193.6
Bivalent point [ ºC ] -10 -10 -10 -10
Parameter of heat sink
Maximal flow temperature [ ºC ] 65 65 65 65
Minimal flow temperature [ ºC ] 25 25 25 25
Flow nominal [ m3/h ] [@35/30] 1.96 ~ 3.91 2.50 ~ 5.00 3.37 ~ 6.73 4.17 ~ 8.34
Pressure drop [ kPa ] [@35/30] 20 20 20 20
Nominal ∆T [ K ] [@W35°C] 5 5 5 5
Nominal ∆T [ K ] [@W55°C] 8 8 8 8
Nominal ∆T [ K ] [@W65°C] 10 10 10 10
Connection port size [ " ] 1.1/2" 1.1/2" 1.1/2" 2"
Parameter of low temperature heat source
Minimal source temperature [ ºC ] -10 (7) -10 (7) -10 (7) -10 (7)
Maximal source temperature [ ºC ] 30 30 30 30
Flow source nominal [ m3/h ] 2.03 ~ 4.05 2.58 ~ 5.17 3.45 ~ 6.91 4.23 ~ 8.47
Pressure drop source [ kPa ] 12 12 12 20
Nominal ∆T source [ K ] 4 4 4 4
Connection port size source [ " ] 1.1/2 2 VIC 2.1/2 VIC 2.1/2
Electrical parameters
Voltage [ V ] 3~ 400/50 3~ 400/50 3~ 400/50 3~ 400/50
Safety protection [ A ] C20 C25 C32 C40
Current - nominal [ A ] 8.56 11.16 18.64 23.50
Current - maximal [ A ] 18.40 21.80 32.00 37.20
Current - Start [ A ] 11.56 15.06 25.16 31.73
Softstart - - - -
Sound information
Sound power - indoor Lw [ dB(A) ] 52.6 53.2 55.7 57.3
Sound power - outdoor Lw [ dB(A) ]
Sound pressure Lp in 1 meter [ dB(A) ] 44.6 45.2 47.7 49.3
Sound pressure Lp in 5 meter [ dB(A) ] 30.6 31.2 33.7 35.3
Sound pressure Lp in 10 meter [ dB(A) ] 24.6 25.2 27.7 29.3
Sound pressure Lp in 15 meter [ dB(A) ] 21.1 21.7 24.2 25.8
13 + 16 =


Technical Sales & Support
West Europe
WAMAK Italia Sas
sales@wamakitalia.it

Central/East Europe
WAMAK s.r.o. Slovakia
sales@wamak.eu