Heat pump storage tank WP

Heat pump storage tank for domestic hot water WP

Enamelled heat pump cylinder with double coil heat exchanger

The WP enamelled heat pump cylinder for domestic hot water is the ideal solution for those who want to make the heating of their domestic hot water more efficient and more comfortable. The innovative parallel-wound double coil significantly minimises pressure losses and enables exceptional heat transfer. The large surface area of the heat exchanger is critical to the efficiency and performance of a heat pump or condensing boiler. However, this high performance water heater can also be used for all other heat sources.

Heat pump storage tanks WP

Heat pump hot water storage tanks WP as a high-performance DHW tanks with double heat exchanger coil, for central hot water supply, available sizes 200, 300, 400, 500, 750, 1000, 1500 und 2000

Extra-large heat exchanger surface area

The use of modern heat pumps makes unique heat pump storage technology necessary!

The gigantic double register enables the heat pump to achieve maximum energy efficiency. The large heat exchange surfaces are more than sufficient for heat pumps to achieve excellent performance figures, even for domestic hot water heating.
Heat pump hot water storage tanks WP also have high-quality double-layer enamelling on the inside wall of the tank and are therefore perfectly protected against corrosion. The domestic hot water tanks can be used in all water conditions and in any pipe system.

Advantages of heat pump hot water storage tanks WP

Double heat exchanger coil for the heat pump
Perfectly suited for heat pumps and condensing technology. Due to the gigantic upper exchanger surface, the condensing boiler will also reach the best utilisation factor for domestic hot water heating
The enormous upper heat exchanger performance makes this storage tank a high-performance DHW heater that also fulfils the high requirements of apartment buildings
High-grade quality steel S235JR, thick-walled and pressure-resistant
Internal corrosion protection with double-layer enamelling, two magnesium anodes
Possibility of installing a suitable electric heating element

Due to their special design, heat pump DHW tanks from Solarbayer provide a consistently high tap performance in a best drinking water quality. Heat pump storage tanks also offer many advantages in condensing boiler technology. Due to the large reheating volume, the operating times are extended and the number of starts reduced at the same time. The bigger reheating volume extends the operating times and also reduces the number of starts. The large-area reheating exchangers increase the ΔT between the boiler flow and return, and therefore enable a high level of efficiency in the condensing boiler.

Connection example

Technical data

Heat pump DHW tank WP		200	300	400	500	750	1000	1500	2000
nominal capacity	L	206	289	399	502	750	1000	1500	2000
corrosion protection	-	Two-layer enamelling, magnesium anode
weight	kg	115	145	180	220	273	400	495	530
height without insulation [A]	mm	-	-	-	-	1790	2040	2205	2470
height with insulation [B]	mm	1285	1730	1675	1805	1845	2095	2285	2550
tilted height	mm	1441	1849	1836	1971	1840	2080	2240	2520
diameter without insulation [C]	mm	-	-	-	-	790	790	1000	1100
diameter with insulation [D]	mm	650	650	750	790	950	950	1000	1300
max. size of electric heating element	mm	550	550	650	700	850	-	-	-
insulation thickness with outer jacket [E]	mm	75	75	75	70	80	80	100	100
insulation + outer jacket	-	PUR rigid foam (non-removable) + PVC, color silver				PUR hard shells + PVC, color silver		Fleece + PVC, color silver
stand-by heat loss ¹	kWh/24h	1,32	1,56	1,78	1,92	2,54	2,95	3,46	4,13
standing loss ¹	W	55	65	74	80	106	123	144	172
Energy Efficiency Class ¹	-	B	B	B	B	C	C	C	C
max. operating pressure	bar	10
max. operating temperature	°C	95

specifications double heat exchanger		200	300	400	500	750	1000	1500	2000
heating surface	m²	3,0	3,8	5,0	5,9	7,5	10,0	11,0	12,0
capacity	L	18,5	23,1	30,0	36,3	46,2	63,0	70,0	73,0
pressure drop (2 m³/h)	mbar	35	43	62	66	80	97	144	169
max. operating pressure	bar	10
max. operating temperature	°C	110

specifications output performance		200	300	400	500	750	1000	1500	2000
continuous tap output at 8 kW, T_flow 55°C \| CW 10°C/HW 45°C	L/h	834	1058	1397	1649	2096	2795	3071	3335
continuous tap output at 12 kW, T_flow 55°C \| CW 10°C/WW 45°C	L/h	902	1144	1510	1783	2266	3022	3321	3607
continuous tap output at 16 kW, T_flow 55°C \| CW 10°C/WW 45°C	L/h	943	1196	1578	1864	2369	3160	3473	3772
continuous tap output at 20 kW, T_flow 70°C/T_return 40°C \| CW 10°C/WW 45°C	L/h	971	1231	1625	2439	3576	3253	3576	3884
continuous tap output at 50 kW, T_flow 70°C/HR 40°C \| CW 10°C/WW 45°C	L/h	1053	1336	1763	2674	3882	3531	3882	4217
performance indicator NL according DIN 4708 1-3	N_L	5,5	11	17	25	42	62	92	115
performance indicator NL with heat pump operation	N_L	1,5	2,7	5	7,8	14,2	25	45	70

Tank dimensions

connections with dimensioning		200	300	400	500	750	1000	1500	2000
[1] Top anode (G 1 ¼“ IG)	mm	length: 650	length: 900	length: 750	length: 900	length: 400	length: 900	length: 900	length: 900
[2] Top anode (G 1 ¼“ IG)	mm	Without second anode				length: 900
[3] domestic hot water	mm	1164 (Rp 1“ IG)	1609 (Rp 1“ IG)	1541 (Rp 1“ IG)	1595 (Rp 1 ¼“ IG)	1590 (Rp 1 ¼“ IG)	1840 (Rp 1 ¼“ IG)	1935 (Rp 2“ IG)	2210 (Rp 2“ IG)
[4] thermometer (Rp ½″)	mm	1040	1430	1385	1475	1450	1730	1825	2090
[5] circulation	mm	990 (Rp ¾“ IG)	1200 (Rp ¾“ IG)	1205 (Rp ¾“ IG)	1375 (Rp 1“ IG)	1140 (Rp 1“ IG)	1235 (Rp 1“ IG)	1460 (Rp 1 ¼“) IG)	1795 (Rp 1 ¼“) IG)
[6] electric heating element (G 1 ½“ IG)	mm	940	1150	1165	1335	1300	-	-	-
[7] heating flow	mm	890 (Rp 1 ¼“ IG)	1080 (Rp 1 ¼“ IG)	1100 (Rp 1 ¼“ IG)	1235 (Rp 1 ¼“ IG)	1250 (Rp 1 ½“)	1695 (Rp 1 ½“)	1620 (Rp 1 ½“)	1655 (Rp 1 ½“)
[8] sensor (Rp ½“ IG)	mm	593	653	690	825	775	1193	1260	1295
[9] sensor (Rp ½“ IG)	mm	-	-	-	-	-	542	870	905
[10] flange ² (anode)	mm	257	270	280 (400)	360 (400)	400 (400)	400 (400)	530 (650)	565 (650)
[11] heating return	mm	210 (Rp 1 ¼“ IG)	230 (Rp 1 ¼“ IG)	250 (Rp 1 ¼“ IG)	295 (Rp 1 ¼“ IG)	370 (Rp 1 ½“ IG)	345 (Rp 1 ½“ IG)	450 (Rp 1 ½“ IG)	385 (Rp 1 ½“ IG)
[12] cold water	mm	67 (Rp 1“ IG)	67 (Rp 1“ IG)	79 (Rp 1“ IG)	175 (Rp 1 ¼“ IG)	220 (Rp 1 ¼“ IG)	220 (Rp 1 ¼“ IG)	315 (Rp 2“ IG)	340 (Rp 2“ IG)

Manufacturing tolerance according to DIN ISO 13920 C
Please take the instructions for installation/start up/maintenance from the relevant operation manuals

¹⁾

stand-by heat loss according to EN 12897:2020

²⁾

outside = 170 mm; bolt circle = 146mm; 8-hole (M10); from 400 litres with integrated anode M8x30