Buderus Logalux ST1000/3 US Page 1 Installation And Maintenance Instructions Manual Download

Page: 1 / 20

6304 0112 – 07/2005 US

For heating contractors

Please read carefully prior to installation and maintenance.

Installation and maintenance
instructions

Indirect Fired domestic hot water tank
Logalux ST400/3 "US", 500/3 "US",
750/3 "US" and 1000/3 "US"

Summary of Contents for Logalux ST1000/3 US

Page 1: ... US For heating contractors Please read carefully prior to installation and maintenance Installation and maintenance instructions Indirect Fired domestic hot water tank Logalux ST400 3 US 500 3 US 750 3 US and 1000 3 US ...

Page 2: ...ety limits 6 5 Transporting and installing DHW tank 7 5 1 DHW tank handling 7 5 2 Positioning the DHW tank 7 6 DHW tank installation 8 6 1 Installing the DHW pipework 8 6 2 Checking the magnesium anode connection 9 6 3 Installing the hot water temperature sensor Logamatic or SP34D Control 9 6 4 Installing Honeywell Aquastat 10 6 5 Install thermal insulation 11 7 Start up and shutdown 13 7 1 Starti...

Page 3: ...materials and accessories You need standard tools for the installation and maintenance of the DHW tank as those typically used in gas and water installations A transport dolly is also useful USER NOTE Observe all standards and guidelines applicable to the installation and operation of this heating system in your country USER NOTE If the storage tank will be installed in Massachusetts it must be in...

Page 4: ...d systems 2 2 Notes structure Two levels of danger are identified and signified by the following terms 2 3 Please observe these notes 2 4 Disposal z Dispose of the DHW tank packaging in an environmentally responsible manner z Dispose of old DHW tanks in an environmentally responsible manner through an approved organization WARNING RISK TO LIFE Identifies possible dangers emanating from a product w...

Page 5: ... 3 Thermal insulation jacketing Fig 1 Item 4 The thermal insulation mat is flexible foam with an outer cover of plastic Top and bottom thermal insulation Fig 1 Item 2 Front thermal insulating disk access port Fig 1 Item 7 Front access port Fig 1 Item 9 The manual access cover is an opening for maintenance inspection and cleaning Sensor well for installation of a DHW temperature sensor Fig 2 page 6...

Page 6: ...supply RS boiler return Type ØD in H in Capacity Gal Weight lbs AW VS RS EK EL EZ Max headtransfer capacity CM ST 400 3 US 33 61 103 407 1 1 1 225 ST 500 3 US 33 73 129 486 1 1 1 260 ST 750 3 US 39 73 194 702 1 1 1 350 ST 1000 3 US 43 75 258 893 1 1 1 425 Approved maximum values Temperatur e Operating pressure On sitetest pressure 2 C F bar psi bar psi Heating water 100 212 6 80 1 N A1 DHW 95 203 ...

Page 7: ...he DHW tank may be placed either on the right or left side of the boiler Observe the minimum clearances recommended for installation and maintenance when installing the DHW tank Fig 4 Maintain at least 6 clearance from combustible surfaces The floor must be level and able to support a full tank Fig 3 Moving DHW tank on pallet general layout USER NOTE z Transport the DHW tank fastened to the pallet...

Page 8: ...nection of the brass tee on the cold water inlet drain connection z If a Logamatic or Goldline SP30D control is used the installation is described in Section 6 3 page 9 z If a Honeywell Aquastat is used as the DHW control the installation is described in Section 6 4 page 10 z Refer to Table 1 and select a P T valve with a rating at least equal to the maximum heat transfer capacity of the tank CAUT...

Page 9: ...or SP34D as follows z Insert the sensor pack including the blank spacers and wavy compensating spring Fig 7 Item 1 to 4 until it bottoms out inside the sensor well Fig 7 Item 5 During insertion the plastic spiral Fig 7 Item 3 which holds the sensor together slides back automatically The spring Fig 7 Item 4 ensures contact between the sensor well and the sensor surfaces and so a reliable temperatur...

Page 10: ...y with clamping spring and possibly blank spacers Fig 9 Item 4 and 5 fully into the sensor well M Fig 9 Item 3 z Screw Aquastat Fig 9 Item 2 to DHW tank with two self tapping screws Fig 9 Item 1 First drill two small holes in the cover beside the M1connection z Replace cover in Aquastat Fig 8 Installing the sensor holder clip Item 1 Sensor holder clip Item 2 Immersion well 1 2 USER NOTE See the wi...

Page 11: ...th the slots near the tank feet Fig 10 z Place the perforated thermal insulating jackets around the tank so the holes fit the connections Fig 10 z Pull the ends of the thermal insulating jackets together and close them Fig 10 z Position thermal insulating disk before front access port Fig 11 z Place 4 snap nuts over the holes in the thermal insulating foil Fig 11 Item 2 z Screw cover over access p...

Page 12: ... required in the thermal insulating jacket z Place thermal insulating disk Fig 12 Item 1 on the top access port so it contacts the edge of the thermal insulating jacket z Place tank cover plastic cover Fig 12 Item 2 over the thermal insulating disk and the edge of the thermal insulating jacket z Remove the nameplate from the envelope with the technical documentation z Pull protective foil off the ...

Page 13: ...if the high limit safety trips on the boiler frequently responds The pressure and temperature valve function should be checked annualy by manually opening it The P T valve blow off line Fig 14 Item 2 must always be kept open and piped full port to a nearby floor drain Fig 14 Installation diagram general layout Item 1 Shut off valve for cold water inlet Item 2 Blow off line of the P T valve AW Dome...

Page 14: ...owing z Keep the DHW tank in use z Activate the holiday function on the control panel or select the lowest possible DHW temperature Should it be necessary to take the DHW tank out of use observe the hygiene requirements for DHW system flushing of pipework currently applicable in your state or jurisdiction CAUTION TANK DAMAGE Corrosion damage may occur if the DHW tank has to remain empty for severa...

Page 15: ...peratures 8 1 Preparing the DHW tank for maintenance z Disconnect your heating system from the electricity supply z Drain the DHW tank Shut off so the cold water feed and open the drain EL Open the air vent valve or the highest tap to vent the system z Remove the top cover Fig 15 Item 2 Remove the four screws on the side z Remove the thermal insulating disk Fig 15 Item 1 from the front of the acce...

Page 16: ...erior of the DHW tank with a hard cold water jet approx 58 72 psi pressure Fig 17 You can increase the cleaning effect of the jet by heating up the DHW tank before cleaning The thermo shock effect releases scale deposits more easily from the coil type heat exchanger Remove the residues with a wet dry vacuum cleaner with plastic suction tube or flush debris through the tank drain Fig 16 Removing th...

Page 17: ... anode if the diameter has become reduced to approx 1 2 to 3 4 8 4 Replacing the magnesium anode z Remove the M8 nut Fig 18 Item 10 to release the ground wire eyelet Fig 18 Item 8 z Remove M8 nut Fig 18 Item 7 z Remove the manual access cover Fig 18 Item 3 from the magnesiumanode Fig 18 Item 1 z Replace the magnesium anode z Fit the new magnesium anode with its associated small parts see Fig 18 Fi...

Page 18: ...nnections have good metal to metal contact z If the anode current is 0 3 mA to 30 mA the anode is working correctly z Note the annual measurements in Table 3 Enter the measured values into the table z Reconnect the wiring after every test Fig 19 Check magnesium anode with multimeter Item 1 Magnesium anode Item 2 M8 threaded pin Item 3 Ground wire Item 4 Access port cover Item 5 Red multimeter meas...

Page 19: ...ch by a three quarter turn equal to the recommended torque of 40 Nm z Fill the DHW tank and restart the heating system z Check all connections and the manual access cover for leaks z Insert the thermal insulating disk Fig 21 Item 1 in front of the access cover z Position top cover Fig 21 Item 2 on the DHW tank and screw in place with four screws from the side Fig 20 Inserting top access cover Item...

Page 20: ...Your local heating contractor BBT North America Inc 50 Wentwort Avenue NH 03053 Londonderry Tel 603 552 1100 Fax 603 421 2719 Toll Free 1 800 BUDERUS www buderus net ...

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