Raypak 1334001 operating instructions Piping-Domestic Hot Water Supply Heaters, Soft Medium Hard

Page 23

 

 

 

 

 

 

 

 

WATER HARDNESS

 

 

 

 

 

 

MODELS

 

 

SOFT

 

 

 

 

MEDIUM

 

 

 

 

 

HARD

 

 

 

 

 

0-4 Grains Per Gallon

 

 

5-15 Grains Per Gallon

 

 

16-25 Grains Per Gallon*

 

Indoor

Outdoor

T

GPM

P

MPS

SHL

T

GPM

P

 

MPS

 

SHL

T

GPM

P

MPS

SHL

0133

0133

22

10

3.4

1-1/4

5.1

17

13

5.5

 

1-1/4

 

8.2

10

22

14.7

1-1/4

22.0

0182/0181

0182

15

20

1.8

1-1/2

4.6

12

26

3.1

 

1-1/2

 

7.5

7

45

9.2

1-1/2

20.8

0260/0261

0260

21

20

1.9

1-1/2

4.6

17

26

3.1

 

1-1/2

 

7.6

10

45

9.4

1-1/2

21.0

0330/0331

0330

27

20

1.9

1-1/2

4.7

21

26

3.2

 

1-1/2

 

7.7

12

45

9.6

1-1/2

21.2

0400/0401

0400

30

22

2.3

1-1/2

5.6

25

26

3.3

 

1-1/2

 

7.8

15

45

9.8

1-1/2

21.3

0514

0514

20

42

2.0

2

4.8

16

52

3.0

 

2

 

7.1

9

90

9.0

2

19.1

0624

0624

25

41

2.0

2

4.7

19

54

3.4

 

2

 

7.9

11

90

9.5

2

20.9

0724

0724

29

41

2.1

2

4.9

20

60

4.4

 

2

 

9.8

13

90

10.0

2

21.4

0824

0824

30

45

2.6

2

5.9

20

68

6.0

 

2

 

12.8

15

90

10.5

2

21.9

0962

0926

30

53

3.8

2-1/2

5.3

20

79

8.5

 

2-1/2

 

11.5

18

90

11.0

2-1/2

15.2

1125

1083

30

61

5.5

2-1/2

7.5

20

90

12.0

 

2-1/2

 

16.2

20

90

12.0

2-1/2

16.2

1223

1178

30

67

7.0

2-1/2

9.3

22

90

12.5

 

2-1/2

 

16.7

22

90

12.5

2-1/2

16.7

1336

1287

30

73

8.7

2-1/2

11.5

24

90

13.3

 

2-1/2

 

17.5

24

90

13.3

2-1/2

17.5

1468

1414

30

80

11.0

2-1/2

14.4

27

90

14.0

 

2-1/2

 

18.2

27

90

14.0

2-1/2

18.2

1631

1571

30

90

14.8

2-1/2

19.0

30

90

14.8

 

2-1/2

 

19.0

30

90

14.8

2-1/2

19.0

1826

1758

33

90

15.4

2-1/2

19.6

33

90

15.4

 

2-1/2

 

19.6

33

90

15.4

2-1/2

19.6

2100

N/A

30

115

5.0

3

7.9

20

172

11.0

 

3

 

17.2

17

200

14.8

3

22.9

2500

N/A

30

137

7.5

3

11.4

20

200

15.8

 

3

 

23.9

20

200

15.8

3

23.9

3001

N/A

30

164

11.2

3

17.0

25

200

16.7

 

3

 

24.8

25

200

16.7

3

24.8

3500

N/A

30

191

16.2

3

23.7

29

200

17.5

 

3

 

25.6

29

200

17.5

3

25.6

4001

N/A

33

200

18.7

3

26.8

33

200

18.7

 

3

 

26.8

33

200

18.7

3

26.8

BOLD TYPE indicates Low NOx models.

ΔT = Temperature Rise, Degree F@GPM FLOW GPM = Gallons per Minute Flow

ΔP = Pressure Drop, Foot thru Heat Exchanger MPS = Minimum Pipe Size, NPT

SHL = System Head Loss

*Must utilize optional cupro-nickel tubes. If over 25 grains per gallon, a water softener/treatment system must be utilized.

Table I: General Specifications Uni-Temp 80 Hot Water Supply Systems

Piping—Domestic Hot Water Supply Heaters

Table I above provides data for selecting in-line pumps for use in a Uni-Temp 80 system for a single heater and tank according to the following:

1.Flow rates are based on water hardness as meas- ured in grains per gallon.

Soft: 0-4 grains per gallon.

Medium: 5-15 grains per gallon.

Hard: 16-25 grains per gallon.

2.Maximum Flow Rates:

0133

22 GPM

0181-0401

45 GPM

0514-1826

90 GPM

2100-4001

200 GPM

3.Pressure drop values (ΔP and SHL) and minimum pipe sizes are for two-pass heaters.

4.Sizing based on heater and tank being placed 5 feet apart. The equivalent length of pipe, valves and fittings in the system is as follows:

1-1/2" NPT = 70 Ft (0181-0401)

2" NPT = 75 Ft (0514-0824)

2-1/2" NPT = 80 Ft (0926-1826)

3" NPT = 85 Ft (2100-4001)

Additional pipe fittings will increase the system head loss.

5.Select a pump based on the water hardness, flow, and system head loss.

6.If heater is more than two stories above the tank, consult the factory.

NOTE: GPM flow rates are limited by maximum acceptable velocity through heat exchanger tubes. Heater models 0514 through 1826 may be provided with an integral rear-mounted pump. This must be specified at time of order.

MINIMUM INPUT ADJUSTMENT: Model Types WH have minimum input ratings as specified on their indi- vidual rating plates. Minimum input controllers have been pre-set at the factory. Consult with factory repre- sentatives if a minimum input problem should occur.

23

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Contents Raytherm Hot Water Supply Heaters Page Contents If Propane is Present or Suspected Feel water before bathing or show- ering General SafetyTemperature limiting valves are available, see manual Temperature Time to Produce Serious BurnModel Identification Time/Temperature Relationships in ScaldsReceiving Equipment Installation Model Part Number Installation Clearances All Dimensions are in InchesClearances Models 0182-0400 Specifications and DimensionsModel MBH ModelsMBH GPH High Wind Conditions Outdoor Units Only Outdoor Water HeatersModels 0181-0401 Outdoor InstallationsVent Terminal Outdoor Stackless Top Installation VentingIndoor Installations Indoor Top Installation Models 0181-0401 Vent Terminal/Indoor Stack Installation Vent Piping Vent PipingMounting Vent Damper InstallationModels 0133 Through 0180 Where Required LocationVent Damper InstallationGas Supply Connections PlumbingGeneral Venting of Diaphragm Gas Components Gas Pressure RegulatorMaximum and Minimum Flow Rates Flow RatesSoft Medium Hard Piping-Domestic Hot Water Supply HeatersPiping Diagram-Type WH Unitemp 80 System Electronic Ignition Pump Time DelayControls-General Relief ValveHigh Limit Flow SwitchLimit Controls Low Water Cut-Off Optional 100% Pilot SafetyHigh and Low Gas Pressure Switches Optional Electrical ConnectionsLocation of Controls 0824 Initial Start-Up Pump and Motor START-UP ProceduresBefore Start-Up GeneralFor Your Safety Read Before Operating After Start-Up Inspection ProceduresBurners ControlsShould be checked monthly. Takes approximately 15 minutes Inspection ProceduresStart-Up Procedures S8610b Ignition Module OperationElectrical Burner AdjustmentHigh Gas Pressure Switch Visual InspectionCombustion Fan Removal Main burner And Orifice RemovalPilot Removal Intermittent Pilot System Honeywell S8600 Electrical-Electronic Ignition IIDMechanical Mechanical Problem Possible Cause Corrective ActionWiring Diagram-W2/WH2 Wiring DiagramsWiring Diagram-WH1 0181/0261 Wiring Diagram-WH1 0331/0401 Wiring Diagram-WH1 Wiring Diagram-WH1 Wiring Diagram-WH1 Wiring Diagram-WH1 Tube Cleaning Service Maintenance ProceduresTroubleshooting-Pumps Combination Flame SENSOR/ Igniter and Pilot Burner Heat Exchanger Removal Pilot Removal and CleaningHeat Exchanger Re-Assembly High Limit or Tankstat RemovalCleaning Flue Gas Passageways Replacement PartsControl Well Replacement Tube ReplacementScope Page