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IBC IWT 119, Installation And Operating Manual, Page: 34 / 40

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IBC IWT 119 Installation And Operating Manual Download Page 34

Symptom

Diagnosis

Solution

Boiler

Maximum

Supply Temp.

setting too low

Make sure the Maximum Supply Temp. setting is at least 10°F higher than the

DHW Supply Setpoint PLUS 1/2 of the Supply Diff’l Temp setting.

Water at

faucets

too hot

DHW

temperature

setting too

high

Reduce the DHW Tank Set Point temperature

DHW

temperature

sensor giving

false reading

Sensor is not fully inserted into the well

Sensor giving incorrect resistance reading

Sensor connected to IBC Therm terminals instead of DHW Sensor

terminals

Improper 3rd party sensor installed in well

32

Section: Troubleshooting

Summary of Contents for IWT 119

Page 1: ...IWT 80 IWT 119 CAUTION The heat transfer medium must be water or other nontoxic fluid having a toxicity rating or Class of 1 as listed in Clinical Toxicology of Commercial Products 5th edition The pre...

Page 2: ......

Page 3: ...1 Installation checklist 15 2 2 System zone control 16 2 3 Priority or non priority for hot water 17 2 3 1 Option 1 Priority 17 2 3 2 Option 2 Non priority 17 2 4 Locating the water heater 18 2 5 Tem...

Page 4: ...t terms explained 27 5 2 Start up 27 5 3 Temperature adjustment 27 6 0 Maintenance 29 6 1 Chemical cleaning of the heating coil 29 6 1 1 Flushing the tank 29 6 1 2 Refilling the tank 30 7 0 Troublesho...

Page 5: ...age and injury to occupants and in extreme cases to death Keep instructions near the water heater for future reference When using electrical appliances follow safety precautions to reduce the risk of...

Page 6: ...taller or service agency The water heater contains very hot water under high pressure Do not unscrew any pipe fittings or attempt to disconnect any components of this water heater without positively a...

Page 7: ...or class of 1 as listed in clinical Toxicology of Commercial Products latest edition Installation start up and servicing of IBC boilers and water heaters must be done with due care and attention and s...

Page 8: ...Liters 40 151 53 201 66 250 79 3 300 119 450 Net tank volume USG Liters 38 3 145 50 7 192 63 9 242 77 4 293 113 426 Weight empty Lbs kg 100 45 3 127 57 6 145 65 8 166 75 230 104 Shipping weight Lbs k...

Page 9: ...111 419 Weight empty Lbs kg 188 85 246 111 Shipping weight Lbs kg 201 91 290 131 Domestic conn size 1 M 1 M First hour delivery Gal Hr 719 753 Continuous Draw Gal Hr 653 653 Boiler Output Required Bt...

Page 10: ...ht inches mm 45 2 1148 57 1448 54 5 1384 B Diameter inches mm 22 559 22 559 24 5 622 M NPT Hot water outlet M NPT Cold water outlet F NPT T P relief valve 1 M NPT In from boiler boiler supply Sensor w...

Page 11: ...Hot water outlet 1 M NPT Hot water outlet 1 M NPT Hot water outlet 1 M NPT In from boiler boiler supply 1 M NPT In from boiler boiler supply 1 M NPT In from boiler boiler supply 1 M NPT In from boiler...

Page 12: ...000 166 131 204 170 140 000 166 131 204 170 160 000 166 131 204 170 Table 3 Recovery rates IWT 40 IWT 50 135 F Boiler Output BTU Hr Boiler Flow 14 gpm 160 F Boiler Flow 14 gpm 180 F 1st Hour Rating Ga...

Page 13: ...000 244 192 300 249 180 000 252 199 309 259 Table 5 Recovery rates IWT 65 IWT 80 135 F Boiler Output BTU Hr Boiler Flow 14 gpm 160 F Boiler Flow 14 gpm 180 F 1st Hour Rating Gal Hr Continuous rating...

Page 14: ...3 280 200 000 344 240 413 311 220 000 367 263 443 342 240 000 390 287 474 373 Table 7 Recovery rates IWT 119 IWT 80 Max 135 F Boiler Output BTU Hr Boiler Flow 25 gpm 160 F Boiler Flow 25 gpm 180 F 1st...

Page 15: ...5 299 479 373 250 000 418 311 494 389 300 000 479 373 570 467 350 000 539 435 646 544 380 000 576 473 692 591 400 000 600 498 722 622 420 000 625 523 753 653 Table 9 Recovery rates IWT 119 Max Pressur...

Page 16: ...For more information see Temperature and pressure relief valve on page 18 1 3 Conformity Inspect shipment carefully for signs of damage All equipment is carefully inspected and packed IBC s responsib...

Page 17: ...t a time Increase the tank size if these factors are present Carefully review the IBC water heater Specifications on page 6 and consult ASHRAE sizing guides and other reliable references Dimensions we...

Page 18: ...be sized for the minimum flow rate with all the zones in use and a maximum flow with only the water heater in use The best method for zone control is the use of circulators The three most common syste...

Page 19: ...tlet 2 3 Priority or non priority for hot water 2 3 1 Option 1 Priority The demand for space heating is interrupted until the hot water demand is satisfied This option provides the maximum delivery of...

Page 20: ...in alcoves closets etc Surface Distance from Combustibles For Service Front 1 24 Rear Right and Left Sides 1 1 Top 1 1 Bottom 0 0 Table 11 Clearances from heater jacket 2 5 Temperature and pressure r...

Page 21: ...5 Thermal expansion tank If the water heater is installed in a closed water supply system such as a system having a back flow preventer in the cold water supply line the installation of a thermal expa...

Page 22: ...e vent connector back to the common venting system and seal off or abandon as applicable Work must conform to all applicable codes Caution Do not operate the IBC water heaters in areas where the water...

Page 23: ...nnection Connect to cold water supply connection using the following suggested components where applicable a union a heat trap a shut off valve a drain valve an expansion tank a back flow preventer an...

Page 24: ...ping system that is either in place or is to be installed for a new hydronic system installation See section Diagrams on page 33 for guidance 2 It is recommended that minimum size 1 pipe be used on th...

Page 25: ...ng operation of the space heating system 3 4 Zone valve system residential only IBC recommends using minimum size 1 pipe and 1 full port zone valves with a high CV on the water heater zone to ensure a...

Page 26: ...nsed environment and compare with the value derived from the measurement of the resistance obtained by connecting a good quality test meter capable of measuring up to 5 000 k 5 000 000 at the controll...

Page 27: ...754 55 13 17 436 140 60 2 490 60 16 15 311 145 63 2 255 65 18 13 474 150 66 2 045 70 21 11 883 155 68 1 857 75 24 10 501 160 71 1 689 80 27 9 299 165 74 1 538 85 29 8 250 170 77 1 403 90 32 7 334 175...

Page 28: ...angle to the back of the control 2 Loosen the mounting screw and carefully insert the sensing bulb into the well until the control mounts to the well head 3 Tighten the screw to lock in place 4 Conne...

Page 29: ...to place the boiler in operation 5 3 Temperature adjustment The tank sensor controls the maximum water temperature in the water heater If it is set too high the resulting hot water can cause painful s...

Page 30: ...Turn the faucet on full and allow it to run long enough to ensure the water and piping have been heated up to the discharge temperature of the tank Using an accurate thermometer test the water tempera...

Page 31: ...e relief valve Annually Sediment Depending on water conditions a varying amount of sediment may collect in the tank Levels requiring service are indicated by a small temperature difference between the...

Page 32: ...ntrol setting to its lowest temperature 10 Allow the heated solution to set in the tank for 30 minutes 11 Drain the tank completely using fittings and hoses as required to reach a drain 6 1 2 Refillin...

Page 33: ...ower is at the circulator and connections are correct replace circulator Water heater zone valve does not open Follow steps for Boiler does not operate Check for 24VAC at the zone valve while there is...

Page 34: ...ff l Temp setting Water at faucets too hot DHW temperature setting too high Reduce the DHW Tank Set Point temperature DHW temperature sensor giving false reading Sensor is not fully inserted into the...

Page 35: ...components may operate when other loads are running at a higher priority resulting in cold air blowing or taking heat from another load You may need to modify the wiring to separate these functions fr...

Page 36: ...Figure 6 Primary secondary piping Figure 7 Two sided parallel piping on indirect side primary secondary on heating side 34 Section Diagrams...

Page 37: ...discharge pipe field supplied always required Drain pan Potable expansion tank required where backflow check valves are installed Whole house water filter required where contaminants are present in th...

Page 38: ...aker in the position shown with no shut off valves between the device and the tank Important Note All external components shown are field supplied IBC supplies the tank including the factory installed...

Page 39: ...Revision history R0 September 2019 Initial release R1 May 2020 Updates to the Specifications section...

Page 40: ...IBC Technologies Inc 8015 North Fraser Way Burnaby BC Canada V5J 5M8 Tel 604 877 0277 Fax 604 877 0295 Toll Free 1 844 432 8422 www ibcboiler com June 2020 IBC Technologies Inc 2020 120 326E R1...

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