background image

5

DANGER

!

Vapors from flammable liquids
will  explode  and  catch  fire
causing  death  or  severe
burns.
Do not use or store flammable
products such as gasoline sol-
vents or adhesives in the same
room  or  area  near  the  water
heater.

Keep flammable products:
1. Far away from heater,
2. In approved containers,
3. Tightly closed and
4. Out of children's reach.

Installation:
Do  not  install  water  heater  where  flammable  products  will  be
stored or used unless the main burner and pilot flames are at
least 18" above the floor.  This will reduce, but not eliminate, the
risk of vapors being ignited by the main burner or pilot flame.

Read  and  follow  water  heater  warnings  and  instructions.

Water  heater  has  a  main
burner and pilot flame.
The pilot flame:
1. Is on all the time or intermit-
tently (IID).
2.  Will  ignite  flammable  va-
pors.

Vapors:
1. Cannot be seen,
2. Are heavier than air,
3. Go a long way on the floor,
4.  Can  be  carried  from  other
rooms to the pilot flame by air
currents.

GENERAL SAFETY

To  meet  commercial  hot  water  needs,  this  heater  is
equipped  with  a  manual  reset  temperature  limit  that
does not exceed 200°F. However, water temperatures
over  125°F  can  cause  instant  severe  burns  or  death
from scalds. This is the preferred temperature setting
when supplying general purpose hot water.

Safety and energy conservation are factors to be con-
sidered  when  setting  the  water  temperature  on  the
thermostat.  The  most  energy-efficient  operation  will
result when the temperature setting is the lowest that
satisfies the needs consistent with the application.

Maximum  water  temperatures  occur  just  after  burner
has  shut-off.  To  determine  the  water  temperature
being  delivered,  turn  on  the  hot  water  only,  place  a
thermometer in the stream, and read the thermometer.

Water temperature over 125°F can 
cause instant severe burns or death 
from scalds. 

Children, disabled, and elderly are 
at highest risk of being scalded. 

See instruction manual before set- 
ting temperature at water heater. 

Feel water before bathing or show- 
ering. 

Temperature  limiting  valves  are 
available, see manual. 

The  following  chart  details  the  relationship  of  water
temperature and time with regard to scald injury and
may  be  used  as  a  guide  in  determining  the  safest
water temperature for your applications.

Temperature

Time to Produce Serious Burn

120°F

More than 5 minutes

125°F

1-1/2 to 2 minutes

130°F

About 30 seconds

135°F

About 10 seconds

140°F

Less than 5 seconds

145°F

Less than 3 seconds

150°F

About 1-1/2 seconds

155°F

About 1 second

Table courtesy of Shriners Burn Institute.

Table A: Time to Produce Serious Burn

WARNING  -  CALIFORNIA  PROPOSITION

65: 

This  product  contains  chemicals  known  to  the

State of California to cause cancer, birth defects or
other reproductive harm.

Summary of Contents for RAYTHERM 133

Page 1: ...s instructions If you cannot reach your gas supplier call the fire department WARNING Improper installation adjustment alteration service or maintenance can cause property damage personal injury or lo...

Page 2: ...ollowing Changes to ASME Mark on page 1 warnings on page 4 warning on page 27 Additions Warnings on page 7 warning on page 13 warnings on page 14 warning on page 19 caution on page 20 warn ing on page...

Page 3: ...TERS Models 0181 to 0401 33 Operation 33 Start Up Procedures S8610B Ignition Module 33 CONTENTS 3 Burner Adjustment 34 Visual Inspection 34 Electrical 34 High Gas Pressure Switch 34 Burner Tray Remova...

Page 4: ...es the odorant to fade or diminish in intensity can also hide or camouflage a gas leak DANGER Make sure the gas on which the heater will operate is the same type as that specified on the heater rating...

Page 5: ...ot water Safety and energy conservation are factors to be con sidered when setting the water temperature on the thermostat The most energy efficient operation will result when the temperature setting...

Page 6: ...d the heater serial number are found on the heater data plate The model number will have the form WH1 0514A or similar depending on the heater model WH Hot Water Supply System 1 on off firing 0514 siz...

Page 7: ...d factory fire tested Materials are CSA certified for low lead content 25 All Models Approved All models are National Board approved Temperature and pressure gauge is standard Intermittent ignition de...

Page 8: ...2100 to Description Location 0401 0824 1826 4001 a 3 1 2 in thick masonry walls Back 9 9 9 16 16 without ventilated air space Right 5 9 5 16 16 Left 9 9 12 16 16 Vent 5 5 5 5 5 Indoor Top 43 39 36 24...

Page 9: ...gs are shown for elevations up to 2 000 feet For elevations over 2 000 feet reduce ratings 4 for each 1 000 feet above sea level Bold type indicates Low NOx models Model Number Indoor Outdoor Input MB...

Page 10: ...ings are shown for elevations up to 2 000 feet For elevations over 2 000 feet reduce ratings 4 for each 1 000 feet above sea level Model Number Input MBH Recovery GPH Dimensions in inches Width A Over...

Page 11: ...evations over 2 000 feet reduce ratings 4 for each 1 000 feet above sea level Recovery based on manufacturer s rating Model Number Input MBH Recovery GPH Dimensions in inches Width A Overall Height B...

Page 12: ...uare inches as noted b All Air From Outdoors When air is supplied directly from outside of building each opening shall have a minimum net free square inches as noted CAUTION Combustion air must not be...

Page 13: ...ver heater vent opening 3 Lower outdoor top onto unit lining up slots in the outdoor top with screws holes in jacket top 4 Reinstall 5 screws to secure jacket top and out door top to unit Fig 4 Outdoo...

Page 14: ...ater 4 Mount drafthood on heater and attach with the 8 sheet metal screws provided Drafthood should be positioned with the vent sensor located on the front left side as shown 5 Remove plastic plug fro...

Page 15: ...15 Fig 9 Indoor Top Installation...

Page 16: ...reads 7 Turn the assembled stack and jacket top right side up The jacket top will be trapped between the brackets and the top of the stack Place the stack over the inner adapter panel flanged hole and...

Page 17: ...ters gas meters regulators and relief equip ment The weight of the vent stack or chimney must not rest on heater drafthood Support must be provided in compliance with applicable codes The heater top a...

Page 18: ...uch as an explosion or carbon monoxide poisoning could result Make certain that it is mounted in an accessible location at least 6 in from any combustible material or the heat exchanger and that the p...

Page 19: ...carrying areas of the appliance must be checked annually with particular attention given to deterioration from corrosion or other sources Check vent damper operation as follows 1 When the heater is of...

Page 20: ...Dissipate test pressure in the gas supply line before reconnecting the heater and its manual shut off valve to gas supply line FAILURE TO FOLLOW THIS PROCEDURE MAY DAMAGE THE GAS VALVE OVER PRESSURED...

Page 21: ...140 250 560 0330 0331 15 25 35 85 150 380 360 0400 0401 15 25 60 100 260 250 0 0 5 0 6 3 0 3 1 0 5 1 5 6 5 3 5 1 0 1 4 1 5 0 0 4 3 0 5 2 5 9 0 0 1 5 4 5 2 0 1 4 2 6 0 0 0 6 0 6 2 0 8 1 5 7 0 8 5 3 0...

Page 22: ...2 1 2 200 11 11 7 90 24 2 5 3 1414 90 26 14 58 40 5 8 2 1 2 200 12 12 2 90 26 2 7 3 1468 90 27 14 60 40 6 2 2 1 2 200 12 12 2 90 27 2 7 3 1571 90 29 14 5 64 40 7 3 2 1 2 200 13 13 90 29 2 8 3 1631 90...

Page 23: ...NESS MODELS D R A H M U I D E M T F O S 16 25 Grains Per Gallon Table I General Specifications Uni Temp 80 Hot Water Supply Systems T Temperature Rise Degree F GPM FLOW GPM Gallons per Minute Flow P P...

Page 24: ...24 Piping Diagram Type WH Unitemp 80 System...

Page 25: ...ield The second version is a fully enclosed solid state Time Delay Relay TDR with a white jumper that selects one of two time delays See Fig 21 B If the jumper is on pins 6 and 7 default the delay tim...

Page 26: ...dels 0724 1336 Fig 24 Motorized Gas Valve Location Model 3001 Limit Controls High Limit The heater is equipped with a manual reset High Limit Push the reset button and set the limit s to 30 F 40 F abo...

Page 27: ...onnection through the heater transformer DO NOT attach line voltage to the TH leads on models 0514 1826 Before starting heater check to ensure proper voltage to heater and pump Heater must be electric...

Page 28: ...28 Location of Controls 0400 WH1 WH2 WH3 0181 LOW NOx WH1...

Page 29: ...29 Location of Controls 0824...

Page 30: ...bly These pumps do not require lubrication Others require SAE 30 non detergent oil to lubricate both the motor and the bearing assembly Check pump motor for type before adding oil Clean dust and lint...

Page 31: ...power to the appliance 4 This appliance is equipped with an ignition device which automatically lights the pilot Do not try to light the pilot by hand 5 Remove heater door panel 6 For Robertshaw gas...

Page 32: ...Pilot burner should ignite after gas reach es the pilot burner b Spark ignition should cut off when pilot flame is established c Main gas valve should open and main burner should ignite after gas rea...

Page 33: ...s Should be checked monthly Takes approximately 15 minutes ADDENDA LOW NOx HEATERS MODELS 0181 TO 0401 The Raytherm Low NOx Heater is offered with WH1 On Off firing standard or 2 stage firing optional...

Page 34: ...d wire size and connections comply with all applicable codes High Gas Pressure Switch Pressure switch senses high pressure and automati cally shuts down burner if abnormal pressure exists Fig 34 Gas P...

Page 35: ...ers up and out of their slots 6 Reverse above procedure to re install Pilot Removal 1 Disconnect pilot tubing from gas valve 2 Remove 4 screws from control box Open the control box 3 Remove the pilot...

Page 36: ...ace module Check for 24 Vac across MV MV PV terminals If no voltage replace module Check electrical connections between module and gas control If okay replace gas valve or gas control operator i e pil...

Page 37: ...Check the circuit breaker outdoor con troller etc upstream of heater If power to Leads L1 and L2 of trans former but no power on 24V side re place Jumper thermostat replace with new if heater fires If...

Page 38: ...38 WIRING DIAGRAMS Wiring Diagram W2 WH2 133...

Page 39: ...39 Wiring Diagram WH1 0181 0261...

Page 40: ...40 Wiring Diagram WH1 0331 0401...

Page 41: ...41 Wiring Diagram WH1 0514 0724...

Page 42: ...42 Wiring Diagram WH1 0824 1826...

Page 43: ...43 Wiring Diagram WH1 2100 2500...

Page 44: ...44 Wiring Diagram WH1 3001 4001...

Page 45: ...xcessive suction lift or vapor binding hot water 3 Bent shaft and or damaged bearings 4 Suction and discharge piping not properly support ed and anchored SERVICE AND MAINTENANCE PROCEDURES Tube Cleani...

Page 46: ...ed go to Step 9 5 Using a 3 8 wrench carefully remove the alu minum cap that was under the solenoid valve count of turns when removing the cap Be careful not to drop the cylinder weight or the small s...

Page 47: ...eater away from piping until studs clear the heater 6 Remove heat exchanger corner brackets 7 Remove combustion chamber clips at the four cor ners of the heat exchanger Fig 40 Typical Heat Exchanger C...

Page 48: ...ber Removal To remove combustion chamber refractory you must first have removed the heat exchanger Unbolt metal combustion chamber retainer from top and remove refractory panels individually Control W...

Page 49: ...high pressure cleaning at a local car wash DO NOT WIRE BRUSH CAUTION Soot is combustible so exercise extreme care NOTE To supply the correct part it is important that you state the model number seria...

Page 50: ...licable warranty conditions satisfied The replacement part will be warranted for only the unexpired portion of the original warranty Raypak makes no warranty whatsoever on parts manufactured by others...

Page 51: ...51...

Page 52: ...52 www raypak com Raypak Inc 2151 Eastman Avenue Oxnard CA 93030 805 278 5300 Fax 805 278 5468 Litho in U S A...

Reviews: