Tehnial Data Manual Model Nos. and priing: see Prie List Vitoell 300-W, EVIA Single oil, indiret-fired domesti hot water storage tank 4 USG (60 L) apaity Vitoell 300-V, EVIA Single oil, indiret-fired domesti hot water storage tank 53 USG (00 L) apaity Vitoell 300-V, EVIA Single oil, indiret-fired domesti hot water storage tank 79 USG (300 L) apaity Vitoell 300-V, EVIB Single oil, indiret-fired domesti hot water storage tank 9 USG (450 L) apaity VITOCELL r 300-W, 300-V Produt may not be exatly as shown Vertial indiret-fired domesti hot water storage tank of high-grade stainless steel with one oil. CAUTION This tank version is not suitable for steam heating appliations. 0/08
Produt Information Benefits Vitoell 300-W/V, EVIA/EVIB Tehnial Data Hygieni, onvenient and eonomial DHW heating with DHW tanks made from stainless steel vertial version Benefits at a glane: Corrosion-resistant tank of high-grade stainless steel offers a long servie life. Fully hygieni due to high quality homogeneous stainless steel surfaes. The high-alloy material is immune to raking or peeling. The tank stays hygieni and requires only minimum servie. Does not require a onsumable anode for orrosion protetion. The entire water ontent is heated by a e in. (35 mm) pipe diameter (OD) stainless steel heat exhanger surfae whih extends to the bottom of the tank. The positioning of the tubular heat exhanger oil further ensures that 8 to 97% of the tank volume an be drawn at onstant water temperature. The stainless steel heat exhanger oil is selfventing towards the top and self-draining towards the bottom, therefore not suseptible to redued heat transfer due to air lok or deposits. Universally suitable for appliations requiring larger quantities of hot water, multiple vertial tanks an be ombined via headers to form tank batteries. Standby losses minimized by highly effetive foam up to f in. (68 mm) thik. 9 USG (450 L) version omes equipped with removable soft PET insulation for easier handling. Easy transport into mehanial room due to low weight and ompat onstrution. Certified to CSA Low Lead Content Certifiation Program; inluding US Safe Drinking Water At, NSF/ANSI 37 as well as other appliable US State requirements.
Vitoell 300-W/V, EVIA/EVIB Tehnial Data Cross Setion Produt Information A Inspetion and leaning opening B Stainless steel ylinder C Highly effetive all-round thermal insulation D Indiret oil made from stainless steel 3
Tehnial Data Tehnial Data Vitoell 300-W/V, EVIA/EVIB Tehnial Data For domesti hot water heating appliations whih utilize modulating and low temperature hot water heating boilers. Suitable for heating systems with: max. working pressure on heat exhanger side up to 0 psig at 39 F (00 C) max. working pressure on DHW water side of up to 50 psig at 0 F (99 C) Model 300-W EVIA Storage apaity USG (L) 4 (60) Supply flow rate for the reovery rates stated GPM (m 3 /h) (5.0) 3. (3.0) 8.8 (.0) 4.4 (.0) Reovery rates* with a DHW temperature rise of the domesti hot water from 50 to 40ºF (0 to 60ºC) and heating water supply temperature of... at the supply flow rate stated above 94ºF (90ºC) 76ºF (80ºC) 58ºF (70ºC) 37 (40) 8 (693) 08 (3) 43 (544) 76 () 0 (383) 33 (39) 76 (668) 05 (3) 39 (57) 75 () 98 (37) Insulation PUR Foam Standby heat loss* BTU/h (ºF/h) 7 (0.7) Dimensions*3 Tank length without insulation Overall length with insulation Tank width without insulation Overall width with insulation Tank height without insulation Overall height with insulation*4 Tilt height without insulation Tilt height with insulation 3 (58) 4 (605) 47 (9) 50 (60) Weight Tank with insulation lbs (kg) 3 (60) Heating water ontent (heat exhanger pipe oil) USG (L).95 (7.4) Heat exhanger surfae area ft. (m ) (.0) Connetions Heating water supply/return Domesti old/hot water Temp. and press. relief valve Reirulation 7 (37) 70 (64) 00 (9) 34 (507) 7 () 95 (360) 3 (33) 50 (570) 90 (6) 0 (454) 65 (9) 86 (37) * When planning for the reovery rate as stated or alulated, allow for the orresponding irulation pump. The stated reovery rate is only ahieved when the rated output of the boiler is equal to or greater than that stated under Reovery rates. * Tested to AHRI Indiret-Fired water Heater Testing Standard IWH-TS-. *3 For other dimensions, see illustrations and table on page 8. *4 Adjustable feet an be adjusted up to in. (50 mm). For information regarding other Viessmann System Tehnology omponentry, please referene doumentation of the respetive produt. 4
Vitoell 300-W/V, EVIA/EVIB Tehnial Data Tehnial Data (ontinued) Tehnial Data For domesti hot water heating appliations whih utilize modulating and low temperature hot water heating boilers. Suitable for heating systems with: max. working pressure on heat exhanger side up to 0 psig at 39 F (00 C) max. working pressure on DHW water side of up to 50 psig at 0 F (99 C) Model 300-V EVIA Storage apaity USG (L) 53 (00) Supply flow rate for the reovery rates stated GPM (m 3 /h) (5.0) 3. (3.0) 8.8 (.0) 4.4 (.0) Reovery rates* with a DHW temperature rise of the domesti hot water from 50 to 40ºF (0 to 60ºC) and heating water supply temperature of... at the supply flow rate stated above 94ºF (90ºC) 76ºF (80ºC) 58ºF (70ºC) 37 (40) 8 (693) 08 (3) 43 (544) 76 () 0 (383) 33 (39) 76 (668) 05 (3) 39 (57) 75 () 98 (37) Insulation PUR Foam Standby heat loss* BTU/h (ºF/h) 9 (0.6) Dimensions*3 Tank length without insulation Overall length with insulation Tank width without insulation Overall width with insulation Tank height without insulation Overall height with insulation*4 Tilt height without insulation Tilt height with insulation 7 (37) 70 (64) 00 (9) 34 (507) 7 () 95 (360) 3 (58) 4 (605) 55b (409) 57b (460) Weight Tank with insulation lbs (kg) 54 (70) Heating water ontent (heat exhanger pipe oil) USG (L).95 (7.4) Heat exhanger surfae area ft. (m ) (.0) Connetions Heating water supply/return Domesti old/hot water Temp. and press. relief valve Reirulation 3 (33) 50 (570) 90 (6) 0 (454) 65 (9) 86 (37) * When planning for the reovery rate as stated or alulated, allow for the orresponding irulation pump. The stated reovery rate is only ahieved when the rated output of the boiler is equal to or greater than that stated under Reovery rates. * Tested to AHRI Indiret-Fired water Heater Testing Standard IWH-TS-. *3 For other dimensions, see illustrations and table on page 8. *4 Adjustable feet an be adjusted up to in. (50 mm). For information regarding other Viessmann System Tehnology omponentry, please referene doumentation of the respetive produt. 5
Tehnial Data Tehnial Data (ontinued) Vitoell 300-W/V, EVIA/EVIB Tehnial Data For domesti hot water heating appliations whih utilize modulating and low temperature hot water heating boilers. Suitable for heating systems with: max. working pressure on heat exhanger side up to 0 psig at 39 F (00 C) max. working pressure on DHW water side of up to 50 psig at 0 F (99 C) Model 300-V EVIA Storage apaity USG (L) 79 (300) Supply flow rate for the reovery rates stated GPM (m 3 /h) (5.0) 3. (3.0) 8.8 (.0) 4.4 (.0) Reovery rates* with a DHW temperature rise of the domesti hot water from 50 to 40ºF (0 to 60ºC) and heating water supply temperature of... at the supply flow rate stated above 94ºF (90ºC) 76ºF (80ºC) 58ºF (70ºC) 86 (54) 47 (937) 45 (43) 95 (737) 03 (30) 37 (50) 77 (5) 36 (895) 39 (4) 86 (706) 98 (9) 3 (50) Insulation PUR Foam Standby heat loss* BTU/h (ºF/h) 5 (0.5) Dimensions*3 Tank length without insulation Overall length with insulation Tank width without insulation Overall width with insulation Tank height without insulation Overall height with insulation*4 Tilt height without insulation Tilt height with insulation 67 (49) 3 (845) 33 (39) 77 (670) 95 (8) 6 (478) 6a (667) 9a (744) 68a (734) 7 (85) Weight Tank with insulation lbs (kg) 3 (05) Heating water ontent (heat exhanger pipe oil) USG (L).9 () Heat exhanger surfae area ft. (m ) 6 (.5) Connetions Heating water supply/return Domesti old/hot water Temp. and press. relief valve Reirulation 43 (4) 90 (70) 5 (34) 53 (578) 83 (4) (40) * When planning for the reovery rate as stated or alulated, allow for the orresponding irulation pump. The stated reovery rate is only ahieved when the rated output of the boiler is equal to or greater than that stated under Reovery rates. * Tested to AHRI Indiret-Fired water Heater Testing Standard IWH-TS-. *3 For other dimensions, see illustrations and table on page 8. *4 Adjustable feet an be adjusted up to in. (50 mm). For information regarding other Viessmann System Tehnology omponentry, please referene doumentation of the respetive produt. 6
Vitoell 300-W/V, EVIA/EVIB Tehnial Data Tehnial Data (ontinued) Tehnial Data For domesti hot water heating appliations whih utilize modulating and low temperature hot water heating boilers. Suitable for heating systems with: max. working pressure on heat exhanger side up to 0 psig at 39 F (00 C) max. working pressure on DHW water side of up to 50 psig at 0 F (99 C) Model 300-V EVIB Storage apaity USG (L) 9 (450) Supply flow rate for the reovery rates stated GPM (m 3 /h) (5.0) 3. (3.0) 8.8 (.0) 4.4 (.0) Reovery rates* with a DHW temperature rise of the domesti hot water from 50 to 40ºF (0 to 60ºC) and heating water supply temperature of... at the supply flow rate stated above 94ºF (90ºC) 76ºF (80ºC) 58ºF (70ºC) 04 (60) 75 (04) 63 (48) 6 (80) 5 (34) 5 (579) 96 (57) 6 (989) 55 (45) 07 (78) 0 (3) 47 (555) Insulation Soft PET Standby heat loss* BTU/h (ºF/h) 87 (0.3) Dimensions*3 Tank length without insulation Overall length with insulation Tank width without insulation Overall width with insulation Tank height without insulation Overall height with insulation*4 Tilt height without insulation Tilt height with insulation 84 (54) 45 (99) 46 (43) 95 (737) 05 (3) 39 (58) 3.9 (609.5) 3 (83) 3 (8) 35 (888) 74b (895) 77 (960) 78 (978) Weight Tank with insulation lbs (kg) 87 (85) Heating water ontent (heat exhanger pipe oil) USG (L) 3.43 (3) Heat exhanger surfae area ft. (m ) 8.3 (.7) Connetions Heating water supply/return Domesti old/hot water Temp. and press. relief valve Reirulation a 54 (45) 06 (780) 4 (36) 66 (67) 9 (7) (458) * When planning for the reovery rate as stated or alulated, allow for the orresponding irulation pump. The stated reovery rate is only ahieved when the rated output of the boiler is equal to or greater than that stated under Reovery rates. * Tested to AHRI Indiret-Fired water Heater Testing Standard IWH-TS-. *3 For other dimensions, see illustrations and table on page 9. *4 Adjustable feet an be adjusted up to in. (50 mm). For information regarding other Viessmann System Tehnology omponentry, please referene doumentation of the respetive produt. 7
Tehnial Data Tank Dimensions Vitoell 300-W/V, EVIA/EVIB Tehnial Data 4 USG (60 L) and 53 USG (00 L) Tanks Dimensions Model 300-W, EVIA 300-V, EVIA Storage apaity USG (L) 4 (60) 53 (00) a b d e f g h i 3 (58) 4 (605) 47 (89) 4b (055) 33 (843) 5 (635) 3 (335) (70) b (37) 3 (58) 4 (605) 55b (409) 50 (75) 35 (885) 5 (635) 3 (335) (70) b (37) BWR Boiler Water Return BWS Boiler Water Supply D Drain DCW Domesti Cold Water DHW Domesti Hot Water IO Inspetion Opening RT DHW Reirulation Tapping TPV Temperature and Pressure relief Valve TS Sensor well for tank Temperature Sensor or temperature ontroller, internal diameter a in. (7 mm) 79 USG (300 L) Tank Dimensions Model 300-V, EVIA Storage apaity USG (L) 79 (300) a b d e f g h i 6a (667) 9a (744) 68a (734) 4a (36) 3 (77) 3 (37) 34b (876) 44 (6) 63a (607) DHW Domesti Hot Water BWR Boiler Water Return IO Inspetion/leanout Opening BWS Boiler Water Supply TPV Temperature and Pressure relief Valve D Drain RT DHW Reirulation Tapping DCW Domesti Cold Water TS Sensor well for tank Temperature Sensor or temperature ontroller, internal diameter f in. (7 mm) 8
Vitoell 300-W/V, EVIA/EVIB Tehnial Data Tank Dimensions (ontinued) 9 USG (450 L) Tank * Tehnial Data Dimensions Model 300-V, EVIB Storage apaity USG (L) 9 (450) a b d e f g h i j 73 (83) 35 (888) 77 (960) 7b (8) 46 (68) 36 (96) 7a (44) 3 (98) 4 (00) 9 (484) IO Inspetion and lean-out Opening D Drain BWR Boiler Water Return BWS Boiler Water Supply DCW Domesti Cold Water DHW Domesti Hot Water RT DHW Reirulation Tapping TPV Temperature and Pressure relief Valve TS Clamping system for fastening Temperature Sensors to the tank shell. Fastening hannels for three temperature sensors per lamping system. * For solar heating systems Viessmann reommends plaement of the DHW tank temperature sensor in the heating water return (BWR). This requires a brass elbow with sensor well (see prie list, Vitoell 300 aessory). DHW tank temperature sensor in solar heating appliations 9 USG (450 L). A DHW tank temperature sensor for solar appliation (inluded with solar ontrol unit) B Brass elbow with sensor well C Solar olletor return onnetion. 9
Tehnial Data Water Flow Domesti hot water draw rate Storage tank ontents heated to 40 F (60 C), boiler not reheating. Model 300-W EVIA Storage apaity Domesti hot water draw rate Domesti hot water draw water with t= 40 F (60 C)(onstant) USG (L) GPM (L/min) USG (L) 4 (60).6 (0) 35 (33) 300-V EVIA 53 (00).6 (0) 4 (55) Pressure drop on the heating water side 300-V EVIA 79 (300) 4.0 (5) 63 (40) 300-V EVIB 9 (450) 4.0 (5) 03 (390) tank volume % 83 77.5 80 87 Vitoell 300-W/V, EVIA/EVIB Tehnial Data Heat-up time The stated heating times are ahieved when the maximum reovery rate of the domesti hot water tank is made available at the respetive supply temperature and with a domesti hot water rise from 50 to 40 F (0 to 60 C). Model 300-W EVIA Storage apaity USG (L) Heating water supply temperature 94 F (90 C) 76 F (80 C) 58 F (70 C) 4 (60) 7 0 30 Pressure drop on the DHW side 300-V EVIA 53 (00) 300-V EVIA 79 (300) Heat-up time (minutes) 9 4 37 30 40 300-V EVIB 9 (450) 5 33 46 Pressure Drop Pressure Drop 0 Heating water flow rate A 4 and 53 USG (60 and 00 L) apaity B 79 USG (300 L) apaity C 9 USG (450 L) apaity DHW flow rate A 4 and 53 USG (60 and 00 L) apaity B 79 USG (300 L) apaity C 9 USG (450 L) apaity
Vitoell 300-W/V, EVIA/EVIB Tehnial Data Performane Rating Tehnial Data Tested to AHRI Indiret-Fired water Heater Testing Standard IWH-TS- Storage First draw test USG (L) Continuous draw rating USG/hr (L/hr) First hour rating USG (L) 4 USG (60 L) 35 (3) 7 (649) 06 (78) 53 USG (00 L) 44 (67) 79 (676) 3 (843) 79 USG (300 L) 7 (69) 34 (885) 305 (54) 9 USG (450 L) 06 (40) 70 (09) 376 (40) Standard Equipment Vitoell 300-W, EVIA 4 USG (60 L) apaity DHW tank made from stainless steel. Integral welded sensor well for tank temperature sensor/temperature ontroller (internal diameter 7 mm) Temperature and pressure relief valve Installation fittings Tehnial literature set Thermometer Adjustable feet Fitted thermal insulation Color of the epoxy-oated sheet steel asing: white. Vitoell 300-V, EVIA 53 USG (00 L) apaity DHW tank made from stainless steel. Integral welded sensor well for tank temperature sensor/temperature ontroller (internal diameter 7 mm) Temperature and pressure relief valve Installation fittings Tehnial literature set Thermometer Adjustable feet Fitted thermal insulation Color of the epoxy-oated sheet steel asing: Vitosilver. Threaded elbow with solar sensor well (optional) [well internal dia. a in. (6.5 mm)] Vitoell 300-V, EVIA 79 USG (300 L) apaity DHW tank made from stainless steel. Integral welded sensor well for tank temperature sensor/temperature ontroller (internal diameter 7 mm) Temperature and pressure relief valve Installation fittings Tehnial literature set Thermometer Adjustable feet Fitted thermal insulation Color of the epoxy-oated sheet steel asing: Vitosilver. Threaded elbow with solar sensor well (optional) [well internal dia. a in. (6.5 mm)] Vitoell 300-V, EVIB 9 USG (450 L) apaity DHW tank made from stainless steel. One lamping system with three fastening hannels for attahing temperature sensors to the tank shell. Temperature and pressure relief valve Installation fittings Tehnial literature set Thermometer Adjustable feet Separate arton with removable thermal insulation Color of the plasti-oated thermal insulation: Vitosilver Threaded elbow with solar sensor well (optional) [well internal dia. a in. (6.5 mm)]
Produt Installation Multiple Tank Installation Vitoell 300-W/V, EVIA/EVIB Tehnial Data Tehnial data The DHW tanks may be ombined into batteries onsisting of tanks [79 USG (300 L)] tanks or 3 [9 USG (450 L)] tanks. Tank batteries onsisting of more than 3 tanks an be installed by reating up to 4 batteries, eah onsisting of tanks. The heating ontrator is responsible to ensure proper piping on both the primary and seondary iruits. Model 300-V, EVIA 300-V, EVIB Tank storage apaity USG (L) 79 (300) 9 (450) Total apaity of tank battery USG (L) 58 (600) 38 (900) 357 (350) Number of storage tanks 3 Reovery rates* with a temperature rise of the domesti hot water from 50 to 40 F (0 to 60 C) and heating water supply temperature of... at the supply flow rate stated below Supply flow rate for the reovery rates stated 94 F (90 C) 76 F (80 C) 58 F (70 C) 354 (04) 47 (788) 78 (8) 37 (4) 96 (58) 64 (00) 408 (0) 550 (08) 36 (96) 43 (640) 3 (68) 304 (58) 6 (80) 85 (33) 489 (44) 648 (460) 348 (0) 456 (737) GPM (m 3 /h) 6.4 (6) 44.0 (0) 66.0 (5) Standby heat loss* BTU/h (ºF/h) 30 (0.5) 574 (0.3) 86 (0.3) Heat exhanger surfae area ft. (m ) 3 (3.0) 36.6 (3.4) 54.9 (5.) * When planning for the reovery rate as stated or alulated, allow for the orresponding irulation pump. The stated reovery rate is only ahieved when the rated output of the boiler is equal to or greater than that stated under Reovery rates. * Measured values are based on a room temperature of 68ºF (0ºC) and a domesti hot water temperature of 49ºF (65ºC) and an vary by ±5%. For domesti hot water heating appliations whih utilize modulating and low temperature hot water heating boilers Examples of multiple tank installations (shown). All fittings inluding manifolds are field supplied. Model 300-V EVIA Storage tank apaity 79 USG (300 L) 300-V EVIB 9 USG (450 L) # of storage tanks 3 Common header size boiler supply / return Common header size domesti hot / old water Dimensions with insulation Overall width* in. (mm) in. (mm) in. (mm) (5) a (3) 59 (495) (5) a (3) 74 (900) (5) b (38) 6 (968) * Overall width inludes learane spae between the tanks. D Drain on the heating water side AV Air Vent valve BWR Heating Water Return BWS Heating Water Supply DCW/D Domesti Cold Water and Drain on the DHW side DHW Domesti Hot Water RT DHW Reirulation Tapping
Vitoell 300-W/V, EVIA/EVIB Tehnial Data Multiple Tank Installation (ontinued) Produt Installation Domesti hot water draw rate Storage tank ontent heated to 40 F (60 C), boiler not reheating Model 300-V, EVIA 300-V, EVIB Storage tank apaity 79 USG (300 L) 9 USG (450 L) Number of storage tanks Battery storage apaity USG (L) 58 (600) 38 (900) 3 357 (350) DHW draw rate GPM (L/min) 7.9 (30) 7.9 (30).9 (45) Domesti hot water draw Water with t=40 F (60ºC) (onstant) USG (L) 6.8 (480) 06 (780) 309 (70) % of battery volume 93 93 93 Quik reovery (over 0-minute period) Domesti hot water rise from 50 to 3 F (0 to 45 C) Model 300-V, EVIA 300-V, EVIB Storage tank apaity 79 USG (300 L) 9 USG (450 L) Number of storage tanks Battery storage apaity Heating water supply temperature 94 F (90 C) 76 F (80 C) 58 F (70 C) USG (L) USG/0 min (L/0 min) USG/0 min (L/0 min) USG/0 min (L/0 min) 58 (600) 86 (704) 7 (649) 64 (60) 38 (900) 9 (04) 83 (07) 74 (038) 3 357 (350) 438 (656) 45 (608) 4 (557) Max. domesti hot water draw rate (over 0-minute period) Domesti hot water rise from 50 to 3 F (0 to 45 C) Model 300-V, EVIA 300-V, EVIB Storage tank apaity 79 USG (300 L) 9 USG (450 L) Number of storage tanks Battery storage apaity Heating water supply temperature 94 F (90 C) 76 F (80 C) 58 F (70 C) USG (L) GPM (L/min) GPM (L/min) GPM (L/min) 58 (600) 8.6 (70.4) 7.0 (64.9) 6.3 (6.0) 38 (900) 9. (0.4) 8.3 (07.) 7.4 (03.8) 3 357 (350) 43.7 (65.6) 4.4 (60.8) 4. (55.7) 3
Produt Installation System Design Guidelines Vitoell 300-W/V, EVIA/EVIB Tehnial Data IMPORTANT This is a simplified oneptual drawing only! Piping and neessary omponentry must be field verified. Proper installation and funtionality in the field is the responsibility of the heating ontrator. Domesti hot water onnetions A Spring-loaded flow hek valve B Disharge pipe C Anti-sald tempering valve (field supplied) SV Shut-off Valve FV Flow hek Valve PR Pressure Reduing valve D Drain DCW Domesti Cold Water supply PGC Pressure Gauge Connetion E Preharged Expansion tank (required where bakflow preventer is installed; hek loal plumbing odes and requirements) BP Bakflow Preventer BP Bakflow Preventer T&P Temperature and Pressure relief valve DHW Domesti Hot Water supply DW Water filter RP Reirulation Pipe RPU Reirulation Pump 4
Vitoell 300-W/V, EVIA/EVIB Tehnial Data System Design Guidelines (ontinued) Produt Installation Sensor wells for 4 USG (60 L) to 79 USG (300 L) tanks The installed sensor wells are to be used for ontrol sensors to ensure maximum operational safety. For solar heating systems, Viessmann reommends plaement of the DHW tank temperature sensor in the solar olletor return. This requires a brass elbow with the sensor well (see page 9). WARNING To ensure optimum, safe operation, the stainless steel well must be used. The well diameter is large enough to aommodate a wide variety of sensing bulbs. Always use spring lip to ensure proper ontat of apillary bulb against the stainless steel well for proper sensing/heat transfer! Sensor lamps for 9 USG (450 L) tank Sensor lamps are supplied with the tank. Heating water supply temperature over 30ºF (0ºC) For these operating onditions, an approved high limit must be installed to limit the domesti hot water temperature to 03 F (95 C) in the tank. Reirulation tapping The reirulation tapping is on a separate tapping (see pages 8 and 9). Cap this opening if the tank is not installed with reirulation. Bakflow preventers Where bakflow preventers are required, a domesti water expansion tank installation is reommended in the old water inlet piping before the old water enters the Vitoell. For the bakflow devie, observe loal plumbing odes and regulations. Tempering valve Ensure that temperature tempering valve(s) is installed if the domesti hot water storage tank temperature exeeds 40 F (60 C) to protet from salding. Consult plumbing odes and authorities for loal requirements. Installation of additional aquastat(s) WARNING In a multiple-tank installation, it is reommended that an additional high limit temperature devie be installed in the ommon domesti hot water supply header to the system. This safety devie should be wired in series to the operating ontrol of the tank battery. The setting on this additional high limit temperature devie should be approximately 9 F (5 C) higher than the operating high limit. Temperature and pressure relief valve A 50 psi temperature and pressure relief valve (T&P relief valve) is supplied with the tank. The heating ontrator must install the valve on eah tank in a method meeting ode requirements. If loal odes require a different relief valve, substitute the manufaturer s supplied valve. Maximum operating pressure is 50 psig. The T&P relief valve supplied with the tank is tested under ANSI Z. Code for Relief Valves and Automati Gas Shut-off Devies for Hot Water Supply Systems. T&P Valve ASME pressure steam rating CSA temperature steam rating Relief temperature Inlet thread Outlet thread * 05 MBH for 4 USG (60 L) 50 psig see ratings marked on T&P valve 05 MBH* 0 F (99 C) male female Warranty onsideration Viessmann DHW tanks require that the water heated should be of drinking water quality and that any water treatment equipment in use must funtion orretly. If the produt has been improperly installed or misapplied by the installer, ontrator or final user, Viessmann aepts no responsibility for damage howsoever aused and reserves the right to withdraw the produt warranty. In order to qualify for produt warranty, strit adherene to the installation and servie manuals must be observed. In the event that omponents not approved by Viessmann are utilized, Viessmann reserves the right to withdraw all expressed or implied warranties without written notie. The water to be heated with the Vitoell must be drinking (potable) water quality. If the tank is used to heat other media, the warranty will be null and void. Damage resulting from exessive pressure or temperature is learly not the responsibility of Viessmann. The amount of hloride and sulfate aeptable to the tank is limited. In areas where high onentrations of hloride and sulfate are present in drinking water, please onsult Viessmann for diretions. For full warranty details, please read the produt warranty sheet. 5
Vitoell 300-W/V, EVIA/EVIB Tehnial Data Tehnial information subjet to hange without notie. Printed on environmentally friendly (reyled and reylable) paper. San for digital opy of this doument