Viessmann Pyrot 150 Gebrauchsanweisung

Technical Data Manual

Biomass - Thermal Storage Tanks

for use with Biomass Boilers

5457 881 v1.5 06/2013 Please file in Service Binder

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.

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.

Refer to the Installation and Start-up/Service

Instructions applicable to this boiler.

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.

Product Information

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 Tank USG (L)

Pyrot 150 400 (1514)

Pyrot 220 530 (2006)

Pyrot 300 700 (2650)

Pyrot 400 1000 (3785)

Pyrot 540 1500 (5678)

Pyrotec 390 1000 (3785)

Pyrotec 530 1500 (5678)

Pyrotec 720 1750 (6624)

Pyrotec 950 2500 (9464)

Pyrotec 1250 3300 (12492)

Biomass - Thermal Storage Tanks

5457 881 v1.5

Tank Information

Model

No.

Weight

lbs.

(kg)

Volume

USG

(L)

O.D.

in.

(cm)

O.A.H.

[ref] in.

(cm)

S.L.

in.

(cm)

H.H.

[ref] in.

(cm)

B.G.

in.

(cm)

in.

(cm)

in.

(cm)

in.

(cm)

in.

(cm)

in.

(cm)

in.

(cm)

in.

(cm)

in.

(cm)

400 800

(363)

400

(1514)

(107)

(211)

(142)

(22)

(38)

(9)

(23)

(112)

(25)

(46)

(66)

(86)

(107)

(46)

530 950

(431)

530

(2006)

(122)

(221)

(145)

(28)

(41)

(24)

44b

(113)

(25)

(46)

(66)

(86)

(107)

(46)

700 1200

(544)

700

(2650)

(137)

(229)

(145)

(30)

(46)

(23)

(104)

(25)

(43)

(61)

(79)

(97)

(53)

1000 1500

(680)

1000

(3785)

(137)

121

(307)

(224)

(30)

(46)

(23)

(183)

(25)

(64)

(102)

(140)

(178)

(53)

1500 2400

(1089)

1500

(5678)

(168)

124

(315)

(224)

(35)

(48)

(18)

(206)

(30)

(64)

(97)

(130)

(163)

(61)

1750 2700

(1225)

1750

(6624)

(183)

121

(307)

(213)

(38)

20b

(525)

(28)

(168)

(30)

(64)

(97)

(130)

(163)

(69)

2500 3500

(1588)

2500

(9464)

(213)

129

(328)

(216)

(53)

(56)

12b

(32)

(178)

(38)

(71)

(104)

(137)

(170)

(76)

3300 4200

(1905)

3300

(12492)

(213)

163

(414)

119

(302)

(53)

(56)

12b

(32)

101b

(258)

(38)

(91)

(145)

(198)

(252)

(76)

Elevation View

See Top View for true

orientation of parts

5457 881 v1.5

Biomass - Thermal Storage Tanks

Tank Information

Note: The tank must be securely bolted to the floor using

all four mounting supports.

Legend

KEY Item No. Qty Description Service

DV 1 Coupling: N.P.T.# 3000, Full Drain

MW 1 12 x 16 in. c/w 150 # Cover & Gasket Manway

N1 1 Pipe c/w 150# R.F.S.O. Flange Supply from Boiler

N2 1 Pipe c/w 150# R.F.S.O. Flange Return to Boiler

N3 1 Pipe c/w 150# R.F.S.O. Flange Return from System

N4 1 Pipe c/w 150# R.F.S.O. Flange Supply to System

PRV 1 Coupling: N.P.T. 3000#, Full P.R.V.

S1 1 Coupling: N.P.T. 3000#, Full Sensor Well

S2 1 Coupling: N.P.T. 3000#, Full Sensor Well

S3 1 Coupling: N.P.T. 3000#, Full Sensor Well

S4 1 Coupling: N.P.T. 3000#, Full Sensor Well

S5 1 Coupling: N.P.T. 3000#, Full Sensor Well

T1 1 Coupling: N.P.T. 3000#, Full Temperature Gauge

T2 1 Coupling: N.P.T. 3000#, Full Temperature Gauge

T3 1 Coupling: N.P.T. 3000#, Full Temperature Gauge

Connection Sizes

Model No. DV N1-4 PRV S1-5 T1-3

400 1 in. 3 in. 2 in. cin. cin.

530 1 in. 3 in. 2 in. cin. cin.

700 1 in. 4 in. 2 in. cin. cin.

1000 1 in. 4 in. 2 in. cin. cin.

1500 1 in. 4 in. 2 in. cin. cin.

1750 1 in. 6 in. 2 in. cin. cin.

2500 1 in. 6 in. 2 in. cin. cin.

3300 1 in. 6 in. 2 in. cin. cin.

Top View

“Straight Tank”

Top View

“Corner Tank”

Biomass - Thermal Storage Tanks

5457 881 v1.5

Technical information subject to change without notice. Printed on environmentally friendly

(recycled and recyclable) paper.

PRV Installation

Note: The pressure relief valve/air vent is normally

installed to the top opening of the tank (as shown).

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.

Ensure that the pressure relief valve spindle is

always installed vertically. The air vent must be

installed at the top of the tank.

The discharge line opening of the pressure relief

valve must be piped 1.0 ft. (300 mm) above the

floor close to the floor drain with copper or steel

pipe. The discharge pipe must be installed in the

shortest distance and pitch downward from the

pressure relief valve and terminate plain. Ensure

the pressure relief valve is adequately secured.

WARNING

The discharge pipe for the pressure relief valve must be

oriented to prevent scalding of attendants.

Never pipe the discharge pipe to the outdoors.

WARNING

Do not install an isolation valve or any kind of an

obstruction between the tank and the pressure relief

valve or between the pressure relief valve and the

discharge pipe outlet.

Wall Clearances

Note: Dimensions shown are recommended minimum

service clearances. IMPORTANT

The final location/position of the tank inside the building/

structure must allow access to the manway opening for

tank inspection. If the tank is tight to the wall, an opening

in the wall/structure must be provided to properly access

the manway opening.

The tank rating plate must be in an accessible location.

Top View

Pressure

Relief Valve Air

Vent

Jacket

Tank

PA 2 in.

14 in.

(360 mm)

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