Bosch WST50 EL User manual

WST, the new line of indirect domestic hot water storage
tanks, are available in 3 models with capacities ranging
from 50 to 119 gallons. Developed specically for the
North American market, the WST tanks were designed
for easy integration with Bosch or Buderus solar,
tankless, geothermal and boiler products.
 Insulated tank design for low heat loss.
 Electrically isolated heating element ensures
durability while providing high recovery rates.
 Magnesium anode rod equalizes aggressive
water corrosion for prolonged tank life*.
 Mounting brackets pre-installed for solar pump
station installation.
 Warranty: limited lifetime tank and parts**.
Our newest single coil, indirect DHW storage
tanks with capacities of 50, 80 and 119 gallons
WST Domestic Hot Water
Indirect Storage Tanks

WST Domestic Hot Water
Indirect Storage Tanks
Part Numbers & Pricing
Model WST50 EL WST80 EL WST119 EL
Part Number 8718541965 8718541966 8718541967
Description
50 Gallon (188 L)
Single Coil Indirect with
4.5 kW Heating Element
80 Gallon (300 L)
Single Coil Indirect with
4.5 kW Heating Element
119 Gallon (450 L)
Single Coil Indirect with
4.5 kW Heating Element
List Price $1,645 $1,827 $2,100
Solar Coil (Heat Exchanger) Pressure Drop - Ft/H20 - (4.5 gpm) / mbar (17 l/min)
Flow Rate
Head Loss (Feet)
WST 50 /
50 Gallon (188 L)
WST 80 /
80 Gallon (300 L)
WST 119 /
119 Gallon (450 L)
1 gpm 0.5 (15 L) 0.67 (20 L) 0.7 (20 L)
Solar Coil Data (Type Enameled Steel)
Maximum Pressure= 116 psi / 8 bar
Maximum Temperature= 275°F / 135°C
Technical Specications Roughing in Dimensions Energy Information
WST
Models
Tank Capacity
(L)
Coil Capacity
(L)
Height ***
(mm)
Diameter
(mm)
Approx. Shipping
Weight (kg)
First Hour Rating
(L)
Standby Heat Loss
(°C/h)
WST 50 50 gals
(188)
1.6 gals
(6)
45.2"
(1147)
23.6"
(600)
234 lbs
(106)
45 gals
(170)
0.7 °F/h
(0.39)
WST 80 80 gals
(300)
2.2 gals
(8.5)
50.6"
(1285)
27.6"
(700)
320 lbs
(145)
57 gals
(216)
0.6 °F/h
(0.32)
WST 119 119 gals
(450)
2.2 gals
(8.5)
61.9"
(1572)
29.5"
(750)
428 lbs
(194)
74 gals
(280)
0.5 °F/h
(0.27)
*** Height without storage tank feet.
Heater furnished with standard 240 volt AC, single phase non-simultaneous wiring and 4500
watt element. To prevent corrosion, proper pH levels in heat transfer uid must be
maintained. WST models meet all current state requirements for storage tanks.
Features & Benets
 All connections are clearly labeled with ttings located at front of tank for convenient installation.
 Top domestic water connections spaced 8" apart for simplied retrot.
 Ceramic tank lining resists corrosion & prolongs tank life.
 Internal heat exchanger with large surface area for greater heat transfer.
 Recirculation return connection.
Solar Tank Data
Maximum Pressure= 150 psi / 10.34 bar
Maximum Temperature= 203°F / 95°C
* Anode rod maintenance required. See owners manual for further information.
** Limited warranty. Copies of original warranties in their entirety are available upon request. Please contact your area representative.
2 | WST Tanks Sell Sheet

Portions of Bosch Thermotechnology Corp.
Terms and Conditions of Sale can be found
below. Please refer to our website: www.
boschthermotechnology.com for complete
Terms and Conditions of Sale.
1. General
1.1 Your purchase order(s), when accepted, will be
subject to the Terms and Conditions of Sale found on
www.boschthermotechnology.com. The terms and
conditions referenced on www.boschthermotechnolo-
gy.com constitute the entire agreement between you
("Buyer") and Bosch Thermotechnology Corp. ("BTC")
with respect to the transaction(s) covered by your
purchase order(s) as conrmed by BTC.
1.2 No modication or waiver of any of the terms and
conditions found www.boschthermotechnology.com
and no additional or different terms or conditions
shall be effective unless (i) modied by BTC‘s quotati-
on or sales modied by BTC’s quotation or sales
acknowledgement, or (ii) agreed to in a single writing
signed by both parties. No oral agreement, course of
performance or other means other than such written
agreement signed by both parties expressly providing
for such waiver shall be deemed to waive the terms of
this document.
2. Prices and Taxes
2.1 All prices are based upon BTC’s pricing in effect
on the date of the quotation, unless otherwise indica-
ted on the face of the quotation. The delivery date
will be established on the order acknowledgement
form prepared and sent by BTC. BTC reserves the
right to adjust the prices due to increases in material,
labor, manufacturing or shipping costs if the incre-
ases occur before the delivery date. If the amount of
the cost increases exceeds ten (10) percent, BTC has
the right to cancel the contract on four (4) weeks
notice in writing, and the delivery will not be made
unless a new price agreement is reached.
2.2 The Prices do not include any applicable Federal,
State or local sales, use, excise, value-added or
similar-type tax or assessments applicable to the
price, sale, use or delivery of the Goods ordered by
Buyer.
Such taxes and assessments will be included in BTC’s
invoice and paid by Buyer unless Buyer’s purchase
order plainly states on its face the existence of an
exemption from any such tax or assessment and
Buyer provides BTC with evidence of such exemption
from the applicable taxing authority.
5. Warranty Policy*
5.1 Unless a different limited written warranty is
provided by BTC with the Goods, the terms and
conditions of the warranty for the Goods shall be sub-
ject to the following limited written warranty. BTC
warrants all Goods manufactured by it to be free from
defects in material and workmanship for one year
from the following:
5.1.1 The date of installation if a warranty card has
been received by BTC that sets forth the correct date
of installation;
5.1.2 The date of purchase if the date can be establis-
hed by an invoice; or
5.1.3 The date of manufacture if the information
required in 5.1.1 or
5.1.2 is not available.
Buyer’s sole and exclusive remedy under this warran-
ty shall be limited to either the repair or exchange of
warranted products, at BTC’s option FCA BTC’s
factory. No attempt to repair or improve the Goods or
parts by any of BTC’s representatives shall change or
extend this warranty.
5.2 Limitations on Warranty
The foregoing warranty is expressly in lieu of any
other warranties, expressed or implied, including but
not limited to the implied warranties of merchantabili-
ty or tness for a particular purpose.
The above warranty does not apply to specialty items
or modications to Goods, which as detailed in
section 12.2 of Terms and Conditions
of Sale found on www.boschthermotechnology.com,
are purchased
"AS IS".
*Full details of the BTC Warranty are included in BTC's Terms and Conditions of Sales which can be found on our website, www.boschthermotechnology.com.
Bosch Thermotechnology Corp.
Terms and Conditions of Sale
www.bosch-climate.us | 3

Bosch Thermotechnology Corp.
Londonderry, NH • Ft. Lauderdale, FL • Irvine, CA
General Inquiries: 1-866-642-3198
Technical Support: 1-800-283-3787
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