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LAARS Heating Systems

Page 6

 

 

 

 

 

 

 

 

Air 

Vent

 

 

 

 

 

 

 

 

Conn. 

Conn.

    Size 

V

  500 

33¾

 

86

 

16¾

 

43

 

 

17

 

10

 

25

 

8

 

20

 

46¼

 

117

 

6

 

15

 

8

 

20

  750 

45¾

 

116

 

22¾

 

58

 

 

17

 

10

 

25

 

 

24

 

58¼

 

148

 

8

 

20

 

10

 

25

 1000 

57¾

 

147

 

28¾

 

73

 

 

17

 

10

 

25

 

 

24

 

70¼

 

178

 

8

 

20

 

10

 

25

 1250 

68¼

 

173

 

34¼

 

87

 

10¼

 

26 

10

 

25

 

9

 

23

 

80¾

 

205 

12

 

30

 

12

 

30

 1500 

78¾

 

200

 

39½

 

100

 

10¼

 

26

 

10

 

25

 

9

 

23

 

91¼

 

232

 

12

 

30

 

12

 

30

  1750 

89¼

 

227

 

44¾

 

113

 

10¼

 

26

 

10

 

25

 

9

 

23

 

101¾

 

258

 

12

 30

 

14

 

36

 2000 

99¾

 

253

 

49¾

 

127

 

10¼

 

26

 

10

 

25

 

9

 

23

 

112¼

 

285

 

12

 

30

 

14

 

36

Figure 2.  Dimensional Data (pump-mounted models).

 

 

 

HORIZONTAL 

INTAKE AIR 

 

 

VENT COLLAR 

VENT PIPE 

 PIPE 

MAX. PIPE 

MAX. NO. 

SIDE WALL 

SIDE WALL

 

SIZE 

SIZE 

DIAMETER 

DIAMETER 

LENGTH 

OF ELBOWS 

VENT 

COMBUSTION

 

 

 

 

 

 

 

TERMINAL 

AIR TERMINAL

  

in.

 

cm

 

in.

 

cm

 

in.

 

cm

 

ft.

 

m

  

PART NUMBER 

PART NUMBER

 500 

8

 

20

 

6

 

15

 

6

 

15

 

50

 

15

 

CA001401 

CA20260701

  750 

10

 

25

 

8

 

20

 

8

 

20

 

50

 

15

 

CA001402 

CA20260703

 1000 

10

 

25

 

8

 

20

 

8

 

20

 

50

 

15

 

CA001402 

CA20260703

 1250 

12

 

30

 

10

 

25

 

10

 

25

 

50

 

15

 

CA001405 

CA20260705

 1500 

12

 

30

 

10

 

25

 

10

 

25

 

50

 

15

 

CA001405 

CA20260705

  1750 

14

 

36

 

12

 

30

 

12

 

30

 

50

 

15

 

CA001404 

CA20260706

 2000 

14

 

36

 

12

 

30 

12

 30

 

50

 

15

 

CA001404 

CA20260706

Table 2.  Horizontal Vent / Combustion Air Parameters.

Содержание MIGHTY THERM2

Страница 1: ...iser d essence ni d autres vapeurs ou liquides inflammables dans le voisinage de cet appareil ou de tout autre appareil QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ Ne pas tenter d allumer d appareils Ne...

Страница 2: ...Heaters 4B 1 Water System Piping Water Heater 14 4B 2 Hot Water Supply Piping Water Heater 15 4B 3 Water Flow Requirements Water Heater 15 4B 4 Combined Water Heating potable and Space Heating Water H...

Страница 3: ...or local factory representative with any issues or questions regarding this equipment Experience has shown that most operating issues are caused by improper installation The Mighty Therm2 appliance is...

Страница 4: ...ate packages Verify receipt of all packages listed on the packing slip Inspect everything for damage immediately upon delivery and advise the carrier of any shortages or damage Any such claims should...

Страница 5: ...d for 30 feet 9 1m of piping If the appliance must be installed with longer piping runs then larger diameter pipe or tubing shall be used Consult the factory for assistance Figure 1 Dimensional Data s...

Страница 6: ...Dimensional Data pump mounted models HORIZONTAL INTAKE AIR VENT COLLAR VENT PIPE PIPE MAX PIPE MAX NO SIDE WALL SIDE WALL SIZE SIZE DIAMETER DIAMETER LENGTH OF ELBOWS VENT COMBUSTION TERMINAL AIR TER...

Страница 7: ...all communicate directly or by ducts with the outdoors or spaces that freely communicate with the outdoors When directly communicating with the outdoors or when communicating to the outdoors through v...

Страница 8: ...the vent system must conform to the National Fuel Gas Code ANSI Z223 1 Latest Edition in the U S or in Canada to CSA B149 1 latest edition The vent system must be sized and installed for a Category I...

Страница 9: ...ppliances with condensing vents are not permitted to terminate above a public walkway or over an area where condensate or vapor could create a nuisance or hazard 3 Locate the vent terminal so that ven...

Страница 10: ...et 3 feet 91 cm above if within 10 feet 3 m 6 feet 1 83 m horizontally Vent termination not allowed in this location Vent termination not allowed in this location for category IV appliances A vent sha...

Страница 11: ...irectly in line with the exhaust vent terminal for the horizontally vented gas fueled heating appliance or equipment The sign shall read in print size no less than one half inch in size GAS VENT DIREC...

Страница 12: ...ing system Turn on any exhaust fans such as range hoods and bathroom exhausts so they will operate at maximum speed Do not operate a summer exhaust fan Close fireplace dampers 4 Place in operation the...

Страница 13: ...e gas supply piping during any pressure testing of that system at test pressures in excess of 1 2 PSIG 3 45kpa 9 The unit must be isolated from the gas supply system by closing its individual manual s...

Страница 14: ...r oxygen is introduced into the system To ensure a proper operating temperature leading to long boiler life a flow rate has been established based on the fluid temperature rise for this specific size...

Страница 15: ...o be aggressive and can erode metals including copper if the water is moved too quickly The water flow requirements for the Mighty Therm2 water heater are based upon the hardness of the water The wate...

Страница 16: ...LAARS Heating Systems Page 16 Figure 6 Hydronic Piping Multiple Boilers Primary Secondary System Figure 7 Hydronic Piping Multiple Boilers Low Temperature System...

Страница 17: ...Mighty Therm2 Page 17 Figure 8 Hydronic Piping One Boiler Multi Temperature System Figure 9 Hydronic Piping Primary Secondary Reverse Return...

Страница 18: ...LAARS Heating Systems Page 18 Figure 10 Hydronic Piping Primary Secondary Reverse Return Low Temperature Figure 11 Water Heater Piping One Heater One Tank...

Страница 19: ...Mighty Therm2 Page 19 Figure 12 Water Heater Piping Multiple Heaters One Tank Figure 13 Water Heater Piping One Heater Multiple Tanks...

Страница 20: ...19 170 257 341 0 6 1 1 1 9 21 14 10 1250 68 68 90 3 8 3 8 6 3 31 31 24 257 257 341 1 2 1 2 1 9 17 17 13 1500 68 68 90 3 9 3 9 6 5 38 38 28 257 257 341 1 2 1 2 2 0 21 21 16 1750 68 68 90 4 0 4 0 6 7 4...

Страница 21: ...ipe or dielectric unions may isolate the boiler electrically Service and maintenance personnel who work on or around the boiler may be standing on wet floors and could be electrocuted by an ungrounded...

Страница 22: ...2 BLOWER 1 LOW HIGH LOW HIGH K1 K2 K1 K2 F2 35 67 F2 35 67 F1 35 67 F1 35 67 K3 HSI 2 HSI 1 120 VAC DPDT MAIN POWER SWITCH S2 S2 35 67 35 67 L2 35 67 L2 35 67 BD 1 IGN S1 S1 35 67 35 67 35 67 L1 35 67...

Страница 23: ...Mighty Therm2 Page 23 Figure 19 Mighty Therm2 500 750 Connection Diagram...

Страница 24: ...LAARS Heating Systems Page 24 Figure 20 Mighty Therm2 1000 Connection Diagram...

Страница 25: ...1 1 2 3 4 5 6 7 8 9 10 10 lockout indicator T stat lockout indicator G Pressure Switch Gas Valve 24V Ground Remote Sense S1 L1 L2 S2 Fenwal F1 F2 lockout indicator T stat lockout indicator G Pressure...

Страница 26: ...e graves blessures ou la mort Ne faire seulement que les connexions conformes au Manuel d installation et d exploitation If controlling the stages of the MT2 from an external source multiple boiler co...

Страница 27: ...ners independently Note that if a single blower is disabled on units 1250 2000 the other fan will continue to operate and safely allow the boiler to run with a single stage 6 2 Filling the System 1 En...

Страница 28: ...ent and Set Up Mighty Therm2 appliances may be operated at high altitude 7700 ft 2347 m with a reduction in output of approximately 10 At altitudes of less than or more than 7700 ft 2347 m the applian...

Страница 29: ...y Therm2 appliances for high altitude High altitude adjustment is accomplished by adjustment of the gas valve manifold pressure and the air shutter s The required instruments used to assist in these a...

Страница 30: ...Disen gage the flanged fitting before and after the valve and remove the valve Re install in reverse order Ensure o rings are properly installed for both inlet and outlet Turn on manual gas shutoff va...

Страница 31: ...onduit and sensors from all components that are attached to the inlet outlet header 4 Isolate the heat exchanger from the water supply 5 Disconnect the header flanges from the inlet and outlet 6 Allow...

Страница 32: ...Laars representative to discuss possible remedies 8 4 Short Cycling Water Heater Short cycling will generally occur only in combination space heating and water heating applications when the water hea...

Страница 33: ...019 5C3019 5C3019 5C3019 5C3019 5C3019 5C3019 12C Pump Housing Cover 5C3020 5C3020 5C3020 5C3020 5C3020 5C3020 5C3020 14 Cover Pipe Gas Manifold 5F3304 5F3304 10F3304 20F3304 20F3304 20F3304 20F3304 2...

Страница 34: ...T2018000 T2017400 T2018000 T2017400 45 Tile Bottom Center T2015900 T2015900 T2015900 T2015900 1 1 2 2 Gas Train Components See Figure 24 46 Blower A2111900 A2111900 A2111900 A2111900 A2111900 A2111900...

Страница 35: ...Cutoff optional E2076500 E2076500 E2076500 E2076500 E2076500 E2076500 E2076500 60 Gauge Temperature Pressure A0079000 A0079000 A0079000 A0079000 A0079000 A0079000 A0079000 62 Tee Adapter Outlet Cast...

Страница 36: ...E0093200 E0093200 E0093200 79 Panel Mounting Limits Ignition Control 5F7001 5F7001 5F7001 5F7001 5F7001 5F7001 5F7001 80 Panel Cover High Limit Ignition Control 5F7003 5F7003 5F7003 5F7003 5F7003 5F7...

Страница 37: ...Mighty Therm2 Page 37 Figure 23 Sheet Metal Components 12A 12B 12C...

Страница 38: ...LAARS Heating Systems Page 38 Figure 24 Internal Components...

Страница 39: ...2001800 1500 A2001900 1750 A2001900 2000 A2109700 Mighty Therm2 Water Heater Size Pump p n Soft Water Normal Water Hard Water 500 A2001700 A2001700 A2001900 750 A2001700 A2001700 A2001900 1000 A200170...

Страница 40: ...8 0100 Fax 905 366 0130 www Laars com Litho in U S A Laars Heating Systems 1608 Document 1211J Figure 26 Electrical Components Laars Heating Systems Company reserves the right to change specifications...

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