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Technical Data Manual
Biomass - Thermal Storage Tanks
for use with Biomass Boilers
Safety and Installation Requirements
Please ensure that these instructions are read and
understood before starting any service work. Failure
to comply with these instructions may cause product/
property damage, severe personal injury and/or loss of
life.
Working on the equipment
The installation, adjustment, service and maintenance of
this product must be performed by a licensed professional
heating contractor who is qualified and experienced in the
installation, service, and maintenance of hot water boilers.
There are no user serviceable parts on the tanks.
Product Information
5457 881 v1.5 06/2013
Ensure that main power to the equipment being serviced
is off.
Take precautions to avoid accidental activation of power
during service work.
Do not perform service work on any component part
without ensuring safe operation of the heating system.
When replacing parts, use original Viessmann or
Viessmann approved replacement parts.
Refer to the Installation and Start-up/Service
Instructions applicable to this boiler.
ASME 'U' code symbol stamped, pressure vessel with
a Canadian Registration Number (CRN). When used in
conjunction with Biomass boilers, the Biomass Thermal
Storage Tank acts as a thermal reservoir and as a
hydraulic break, decoupling boiler and the heating circuit
from each other.
Heat may be added to the tank by the biomass boiler
or back-up systems and removed by the distribution
system at different rates. This ensures steady supply
temperatures to the heating system and ensures efficient
energy use.
The tanks are equipped with three or five temperature
sensors connected to the boiler control to regulate the
biomass boiler operation.
Boiler model, size
Pyrot 150
Pyrot 220
Pyrot 300
Pyrot 400
Pyrot 540
Pyrotec 390
Pyrotec 530
Pyrotec 720
Pyrotec 950
Pyrotec 1250
IMPORTANT
Ensure that the lifting/handling equipment is able to
securely handle the size and weight of this tank
(see data on page 2).
The floor where the tank is to be positioned must be able
to properly support the weight of the tank filled with water.
Tank USG (L)
400 (1514)
530 (2006)
700 (2650)
1000 (3785)
1500 (5678)
1000 (3785)
1500 (5678)
1750 (6624)
2500 (9464)
3300 (12492)
Please file in Service Binder
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Summary of Contents for Viessmann Pyrot 150
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Page 1: Product Information
Do not perform service work on any component part without ensuring safe operation of the heating system. Working on the equipment When replacing parts, use original Viessmann or The installation, adjustment, service and maintenance of Viessmann approved replacement parts. this product must be performed by a licensed professional... - Page 2 Biomass - Thermal Storage Tanks Tank Information Elevation View See Top View for true orientation of parts Model Weight Volume O.D. O.A.H. S.L. H.H. B.G. lbs. [ref] in. [ref] in. (kg) (cm) (cm) (cm) (cm) (cm) (cm) (cm) (cm) (cm) (cm) (cm) (cm)
- Page 3 Biomass - Thermal Storage Tanks Tank Information Note: The tank must be securely bolted to the floor using all four mounting supports. Connection Sizes Model No. N1-4 S1-5 T1-3 1 in. 3 in. 2 in. c in. c in. c in. c in.
- Page 4 Biomass - Thermal Storage Tanks PRV Installation Pressure Note: The pressure relief valve/air vent is normally Relief Valve installed to the top opening of the tank (as shown). Vent If height is a concern, the pressure relief valve can be installed to the flanged supply connection to the heating system or from the biomass boiler (see N2/ N4 on page 2) using a field supplied fitting.