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Laars MIGHTY THERM2 MT2H, Инструкция по установке и эксплуатации, Страница: 25 / 44

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Page 25

Figure 14.   Logic Diagram, Hydronic Boiler

Figure 15.   Logic Diagram, Volume Water Heater

-

+

ST.1
6V

PUMP

STATUS

SWITCH

ST.2
6V

+

-

NO

C

NC

1

P

P2

P1

2

1

STAGE 2

STAGE 1

3

8

7

CTL

BD

4

RELAY

6

GAS 

VALVE

GAS

VALVE

IGN CTL

VAL

FLOW 

SW

PRSW 

BURNER

IGN CTL

PSW

IGN CTL 

TH

CNTRL

BD

FIELD

INTERLOCK

T

T

CNTRL

BD

2

4

CNTRL

BD

24V-

CNTRL

BD

PUMP  

STATUS    

SW

FUSIBLE LINK

MODEL 200

ONLY

MANUAL

RESET

HIGH LIMIT

VENT STK

PR SW

+24

IGN CTL

24V

BLOWER

IGN CTL

F2

IGN CTL

F1

MAIN PWR SW

120 VAC

HSI IGNITOR

IGN CTL

L2

IGN CTL

IGN/FS

IGN CTL

IGN/120

IGN CTL

L1

120 VAC

120 VAC

CLASS 2  50 VA 

TRANSFORMER

PUMP

(IF EQUIPPED)

24 VAC

+24

1

W

CNTRL

BD

24V+

IGN CTL

GND

BK

R

BK

H2358200D

BLACK

BK

BROWN

BR

RED

R

ORANGE

O

YELLOW

Y

GREEN

G

BLUE

BL

VIOLET

V

GRAY

GY

SLATE

S

WHITE

W

WIRE 

COLOR

DESIGNATION 

SEE WIRE DIAGRAM E23486

3

4

2

1

BL

Y

Y

Y

R

NO

C

TB1

L1

PUMP

PUMP LOAD MUST NOT

EXCEED 5 AMPS.

BL

R

BK

FIELD

WIRING

Off On

1 2 

3 4

 5

3.6

2.0

0.4

SWITCHED 120 VAC TO PUMP

120 VAC L

DHW CALL

COM CALL

HEAT CALL

OUT

COM

SYS

BOILER

SENSOR

4 3

2 1

POWER

HEAT CALL
DHW CALL

WWSD

CURVE/ 

SETPOINT

CONNECTOR 

SHOWN FROM

REAR OF BOARD

BK/W & BK

R&W/R

IGNITOR

V/W

R/BK

R/BK

BK

R

Y

Y

FIELD

FIELD

+24

-24

-24

R/BK

BL

Y

R

BL/W

Y

BL/R

W

W

Y/BLK

GY

/V

BK

GY

/B

K

GY

/B

K

V/W

V/W

BR/R

BR/BK

BR/B

LK

BR/BLK

R

BK

R/BK

BR/BK

BR/R

Y

R

G

G

G

G

BK

W

W

W

POWER

BK

BK

BK

BK

BK

BK

BK

BK

BL/R

BL/R

BK

STAGE 2

GAS VALVE

STAGE 1

GAS VALVE

IGN/FS

E0253400 

VAL

IGN  

240

L1

PSW

GND

F1

F2

24

VAC

TH

FC +-

IGN  

120

L2

HIGH

TEMPERATURE

LIMIT

MANUAL RESET

RELAY

FOR      2-

STAGE

FLOW

SWITCH

FIELD

INTERLOCK

L2

+24

W

MANUAL RESET

TEMPERATURE LIMIT

SWITCH

FOR SIZE 200 ONLY

PRESSURE 

SWITCH

AIR 

BOX/BURNER

VENT STACK

PRESSURE 

SWITCH

BLOWER

TRANSFORMER

115 VAC INPUT

24 VAC OUTPUT

BL/R

24V

115V

F1

BL/R

FUSE

W

OUT DOOR

SENSOR

NOTES: 

DOTTED LINES ARE FOR TWO STAGE ONLY.

1.

PUMP MAY BE FIELD-SUPPLIED

2.

REMOVE JUMPER BETWEEN 1 & P1 IN LWCO

3.

Y

Y

BL

BL/R

OPTIONAL 

LWCO

(SEE NOTE 3)

6

R

(WHEN USING

SYSTEM SENSOR)

OUTLET SENSOR

SYSTEM SENSOR: HYDRONIC

INLET SENSOR: FACTORY 

INSTALLED ON VOLUME 

WATER HEATERS

AQUA

STAGE 2

STAGE 1

3

R

B

VSPS

AQUASTAT

GAS 

VALVE

GAS

VALVE

IGN CTL

VAL

FLOW 

SW

PRSW 

BURNER

IGN CTL

PSW

IGN CTL 

TH

AQUA

2B

FIELD

INTERLOCK

T

T

TB1

3

1

PDR

PDR

PUMP  

STATUS    

SW

FUSIBLE LINK

MODEL 200

ONLY

MANUAL

RESET

HIGH LIMIT

VENT STK

PR SW

+24

IGN CTL

24V

BLOWER

IGN CTL

F2

IGN CTL

F1

MAIN PWR SW

120 VAC

HSI IGNITOR

IGN CTL

L2

IGN CTL

IGN/FS

IGN CTL

IGN/120

IGN CTL

L1

120 VAC

120 VAC

CLASS 2  50 VA 

TRANSFORMER

PUMP

(IF EQUIPPED)

24 VAC

+24

W

PDR

IGN CTL

GND

BK

R

BK

B

R

1

2

TB1

4

PDR 6

4

3

PDR 6

2

4

2R

R/BK

1

2

P1

P2

1

2

3

4

HARNESS

CONNECTOR

P

1

-

+

ST.2
6V

NC

C

NO

R

B

W

R

B

W

1

2

ST.1
6V

+

-

PUMP

STATUS

SWITCH

3

4

2

1

BL

Y

Y

R

NO

C

TB1

L1

PUMP

PUMP LOAD MUST NOT

EXCEED 5 AMPS.

BK

W

IGNITOR

V

/W

R

BK

R

Y

Y

FIELD

FIELD

+24

-24

-24

BL/W

Y

B

L/R

W

W

Y/BLK

G

Y

/V

BK

G

Y/

BK

G

Y/

BK

V

/W

V/W

BR/R

BR/BK

BR

/BL

K

BR/BLK

R

BR/BK

BR/R

R

G

G

G

BK

W

W

W

POWER

BK

BK

BK

BK

BK

BK

BK

BK

BL/R

B

L/R

STAGE 2

GAS VALVE

STAGE 1

GAS VALVE

IGN/FS

E0253400 

VAL

IGN  

240

L1

PSW

GND

F1

F2

24

VAC

TH

FC +-

IGN  

120

L2

HIGH

TEMPERATURE

LIMIT

MANUAL RESET

AQUASTAT

FLOW

SWITCH

FIELD

INTERLOCK

L2

+24

W

MANUAL RESET

TEMPERATURE LIMIT

SWITCH

PRESSURE 

SWITCH

AIR 

BOX/BURNER

VENT STACK

PRESSURE 

SWITCH

BLOWER

TRANSFORMER

115 VAC INPUT

24 VAC OUTPUT

BL/R

24V

115V

F1

BL/R

FUSE

W

Y

Y

BL

BL/R

OPTIONAL 

LWCO

(SEE NOTE 3)

6

R

PUMP

DELAY

RELAY

BL

BL

BL

Y

Y

Y

R/BK

R

/B

K

BK

R

R

R

R

R

G

H2391400-

BLACK

BK

BROWN

BR

RED

R

ORANGE

O

YELLOW

Y

GREEN

G

BLUE

BL

VIOLET

V

GRAY

GY

SLATE

S

WHITE

W

WIRE 

COLOR

DESIGNATION 

SEE WIRING DIAGRAM E23802

5.D  Logic Diagrams. 

Mighty Therm

2

  (200, 300, 400) Install & Operating

Содержание MIGHTY THERM2 MT2H

Страница 1: ...tion and or operation could create carbon monoxide gas in flue gases which could cause serious injury property damage or death Improper installation and or operation will void the warranty For indoor...

Страница 2: ...sted Piping Diagrams 17 19 4 B 2 Hot Water Supply Piping Water Heater 20 4 B 3 Water Flow Requirements Water Heater 20 4 B 4 Combined Water Heating potable and Space Heating Water Heater 20 4 B 5 Free...

Страница 3: ...Le hydronique une chaudi re ou un chauffe eau doit tre install conform ment aux proc dures d taill es dans ce manuel ou le chauffage garantie peut tre annul e L installation doit tre conforme aux exi...

Страница 4: ...must include the serial number and model this information can be found on the rating plate installation date and name of the installer Shipping costs are not included in the warranty coverage Some ac...

Страница 5: ...is appliance and are field convertible Model A Combustion Air Connection B Vent Connection C Horizontal Cat III Vent Pipe Size in cm in cm in cm in cm 200 20 5 52 4 10 5 13 4 10 300 26 5 67 4 10 6 15...

Страница 6: ...ack of this appliance and are field convertible Model A Combustion Air Connection B Vent Connection C Horizontal Cat III Vent Pipe Size in cm in cm in cm in cm 200 20 5 52 4 10 5 13 4 10 300 26 5 67 4...

Страница 7: ...ry 1 Vent 6 15 2 Horizontal Category 3 Vent per UL 1738 venting system supplier s instructions 1 2 5 cm when b vent is used When vent and or combustion air connects to the back recommended clearance i...

Страница 8: ...th the outdoors or when communicating to the outdoors through vertical ducts each opening shall have a minimum free area of 1 square inch per 4000 Btu hr 5 5 square cm kW of total input rating of all...

Страница 9: ...e shared vertical duct called a common vent Special care must be taken by the installer to ensure safe operation In the event that the common vent is blocked it is possible especially for fan assisted...

Страница 10: ...all appliances to be common vented for instructions warnings restrictions and safety requirements If safe operation of all appliances connected to a common vent cannot be assured including prevention...

Страница 11: ...a e l C G H Clearance to each side of centerline extended above meter regulator assy 3 ft 91 cm within a height of 15 ft 4 6 m m c 1 9 t f 3 t e l t u o t n e v r o t a l u g e r e c i v r e s o t e c...

Страница 12: ...on monoxide detector with an alarm is installed on each additional level of the dwelling building or structure served by the side wall horizontal vented gas fueled equipment It shall be the responsibi...

Страница 13: ...t least 3 feet 0 9m horizontally from the combustion air terminal and locate the vent terminal at least 1 foot 0 3m above the combustion air terminal see Figure 4 2 C 3 Vertical Vent Terminal When the...

Страница 14: ...d extraction comme les hottes de cuisini re et les ventilateurs des salles de bain S assurer que ces ventilateurs fonctionnent la vitesse maximale Ne pas faire fonctionner les ventilateurs d t Fermer...

Страница 15: ...alues 2 Verify the inlet gas supply pressure Min Max Natural Gas 3 5 W C 10 5 W C Propane 8 W C 13 W C 3 Refer to Table 7 to size supply 4 Run gas supply line in accordance with all applicable codes 5...

Страница 16: ...of the boiler or at the time of boiler installation 4 A 3 Water Flow Requirements Boiler A hydronic heating closed loop application recirculates the same fluid in the piping system As a result no new...

Страница 17: ...in the hangers It is recommended that padding be used when rigid hangers are installed This appliance can be used with several different types of readily available storage tanks A pump draws water fr...

Страница 18: ...Page 18 Figure 6 Hydronic Piping Multiple Boilers Low Temperature System Figure 7 Hydronic Piping One Boiler Multi Temperature System LAARS Heating Systems...

Страница 19: ...Page 19 Figure 8 Hydronic Piping Primary Secondary Reverse Return Figure 9 Hydronic Piping Primary Secondary Reverse Return Low Temperature Mighty Therm2 200 300 400 Install Operating...

Страница 20: ...water conditions more than 17 grains per gallon use a non pump mounted heater with a properly sized field installed pump Table 9 specifies water flow rates for water heaters which will enable the user...

Страница 21: ...2 15 11 87 132 170 0 6 1 4 2 3 12 8 6 400 23 35 45 2 0 4 5 7 4 30 19 15 87 132 170 0 6 1 4 2 3 17 11 8 Notes 1 S soft water 1 to 7 5 grains hardness 2 N normal water 7 6 to 17 grains hardness 3 H hard...

Страница 22: ...1 THROUGH 7 5 7 6 THROUGH 17 OVER 17 2 3 4 Figure 11 Water Heater Piping Multiple Heaters One Tank SUPPLY RECIRC CWMU CAUTION THIS DRAWING SHOWS SUGGESTED PIPING CONFIGURATION AND VALVING CHECK WITH...

Страница 23: ...URE REDUCING VALVE PUMP PRV TPRV Figure 13 Water Heater Piping Multiple Heaters Multiple Tanks CAUTION THIS DRAWING SHOWS SUGGESTED PIPING CONFIGURATION AND VALVING CHECK WITH LOCAL CODES AND ORDINANC...

Страница 24: ...ng water level and must be full at all times In accordance with ANSI ASME CSD 1 Section CW 210 and The National Fuel Gas Code ANSI Z223 1 NFPA 54 Section 10 3 5 a water tube boiler shall have a water...

Страница 25: ...K GY V BK GY BK GY BK V W BR BK BR BLK BR BLK R G G W W POWER BK BK BK BK BK BK BL R BL R STAGE 1 GAS VALVE IGN FS E0253400 VAL IGN 240 L1 PSW GND F1 F2 24 VAC TH FC IGN 120 L2 FLOW SWITCH FIELD INTER...

Страница 26: ...BL R W W Y BLK GY V BK GY BK GY BK V W V W BR R BR BK BR BLK BR BLK R BK R BK BR BK BR R Y R G G G G BK W W W POWER BK BK BK BK BK BK BK BK BL R BL R BK STAGE 2 GAS VALVE STAGE 1 GAS VALVE IGN FS E025...

Страница 27: ...K BK BK BL R BL R STAGE 2 GAS VALVE STAGE 1 GAS VALVE IGN FS E0253400 VAL IGN 240 L1 PSW GND F1 F2 24 VAC TH FC IGN 120 L2 HIGH TEM PERATURE LIM IT M ANUAL RESET AQUASTAT FLOW SW ITCH FIELD INTERLOCK...

Страница 28: ...highest point in the circulating loop then the system is ready for operation 14 Refer to local codes and the make up water valve manufacturer s instructions as to whether the make up water valve shoul...

Страница 29: ...OF THE FOLLOWING CONDITIONS IS TRUE An external energy management system is installed that reduces the boiler water temperature as the heating load decreases This boiler is not used for any space hea...

Страница 30: ...and operates using the boiler outlet sensor system supply boiler outlet Using the system Sensor The system sensor can be used to control the setpoint of a primary loop in a primary secondary system or...

Страница 31: ...n to Air Flow Blocked Vent Pressure Switch Air flow and blocked vent status are continuously monitored by the appliance s ignition control at the control s PSW terminal At the start of an ignition seq...

Страница 32: ...r Safety Shutoff Device must be tested To test a Close gas shutoff valve with burner operating b The flame will go out and blower will continue to run for the post purge cycle Three attempts to light...

Страница 33: ...6 Low water cutoffs when installed on a residential hot water heating system the probe should be removed and cleaned every five years When installed on a commercial application the probe should be re...

Страница 34: ...he threads on the pipe nipples for reuse Apply new tape or pipe dope to the pipe nipples threaded joints should be coated with piping compound resistant to action of liquefied petroleum gas and reinst...

Страница 35: ...closing the manual gas valve on the heater 3 Disconnect and remove the wires conduit and sensors from all components that are attached to the inlet outlet header 4 Isolate the heat exchanger from the...

Страница 36: ...cycling is caused when the load on the boiler system swings rapidly causing frequent cycling between call for heat and satisfied conditions This condition is greatly reduced on two stage units If sho...

Страница 37: ...Air Shutter Blower 2C5000 2C5000 2C5000 19 Assembly Filter Housing 2C3800 2C3800 2C3800 20 Media Filter R2073200 R2073200 R2073200 21 Clip Retaining Filter Media F2022300 F2022300 F2022300 22 Hose Duc...

Страница 38: ...R4C4100 Assembly Tube Heat Exchanger Copper Nickel R2C4120 R3C4120 R4C4120 61 Header Inlet Outlet 2F4122 2F4122 2F4122 62 Header Return 2C4103 2C4103 2C4103 63 Chamber Header Heat Exchanger 2C4001 2C4...

Страница 39: ...T RE0240900 RE0240900 RE0240900 95 Switch Limit High Temperature Hydronic E2304800 E2304800 E2304800 Switch Limit High Temperature Volume Water E2324200 E2324200 E2324200 96 Transformer 24 120 V 50VAC...

Страница 40: ...Page 40 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 22 23 24 25 26 27 28 29 30 31 31 31 31 31 32 20 21 19 Figure 19 Combustion Chamber Components LAARS Heating Systems...

Страница 41: ...Page 41 Figure 20 Jacket Components 40 41 42 48 51 43 44 45 46 47 49 50 52 53 54 54 55 Mighty Therm2 200 300 400 Install Operating...

Страница 42: ...Page 42 60 62 63 63 64 64 73 65 66 67 70 68 72 69B 69A 69A Volume Water Heater Emersion Well This Side Boiler Emersion Well This Side 61 71 Figure 21 Heat Exchanger Components LAARS Heating Systems...

Страница 43: ...Page 43 80 81 85 84 84 86 87 ON OFF 80 82 83 85 86 86 2 STAGE Figure 22 Gas Train Components Mighty Therm2 200 300 400 Install Operating...

Страница 44: ...0 559 1583 Headquarters 20 Industrial Way Rochester NH USA 03867 603 335 6300 Fax 603 335 3355 9 Brigden Gate Halton Hills Ontario Canada L7G 0A3 905 203 0600 Fax 905 636 0666 www Laars com Litho in U...

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