Page 2 - TABLE OF CONTENTS
TABLE OF CONTENTS 2 RECEIVING EQUIPMENT ........................................ 3 MODEL IDENTIFICATION ........................... 3GENERAL SPECIFICATIONS ....................... 3GENERAL SAFETY PRECAUTIONS .............. 4 INSTALLATION INSTRUCTIONS .............................. 5 CLEARANCES ........
Page 3 - RECEIVING EQUIPMENT; NOT; MODEL IDENTIFICATION; TYPE WH1
3 RECEIVING EQUIPMENT On receipt of the equipment, visually check for external damage to the carton or the shipping crate. Ifthe carton or shipping crate is damaged, make a noteon the Bill of Lading and report the damage to theCarrier immediately. Remove the heater from thecarton or the shipping cra...
Page 4 - PROPANE MODELS –; General Safety Precautions; DANGER; DANGER
4 Be sure to read and understand the entire Instruction Manual before attempting to install or operate this water heater. Payparticular attention to the following general Safety Precautions. Failure to follow these warnings could result in a fire orexplosion, causing property damage, bodily injury o...
Page 5 - INSTALLATION INSTRUCTIONS; Minimum; Sheet Metal
INSTALLATION CODES Installation must be in accordance with local codes , or, in the absence of local codes, with the latest editions of the National Fuel Gas Code, ANSI Z223.1/NFPA 54, and the National Electrical Code, ANSI/NFPA 70. In Canada installations must conform with the current CAN/CGA B149....
Page 6 - CLEARANCES TO PROTECTED SURFACES; CLEARANCES; INSTALLATION CLEARANCES
CLEARANCES TO PROTECTED SURFACES Note 1: Combustible floor shield is required when heater is tobe installed on a combustible surface. (See orderinginfo. on pg.5.) Note 2: Servicing Clearances: Provide at least 24" (Models0133-1826), 48" (Models 2100-4001) in front of unit forremoval & se...
Page 7 - SPECIFICATIONS AND DIMENSIONS
SPECIFICATIONS AND DIMENSIONS MODELS 182-400 and 181-401 7 NOTE:Ratings are shown for elevations up to 2,000feet. For elevations over 2,000 feet, reduceratings 4% for each 1,000 feet above sea level. Bold type indicates Low NOx models. * Recovery based on manufacturer's rating. MODEL 133 NOTE:Rating...
Page 10 - OUTDOOR WATER HEATERS; These heaters are design certified for out-; HIGH WIND CONDITIONS; Air For Combustion And Ventilation; All Air From Inside The Building:
4 foot Minimum 4 foot Minimum 1 foot Minimum 4 foot Minimum 3 foot Minimum 10 foot Minimum Forced Air Inlet OUTDOOR WATER HEATERS These heaters are design certified for out- door installation. Heaters must not be installedunder an overhang of less than three (3) feet fromthe top on the heater. Three...
Page 11 - OUTDOOR INSTALLATIONS; Heaters are shipped with outdoor vent terminal; VENTING; Insert tabs into
11 OUTDOOR INSTALLATIONS Step 2: Tighten the (4) screws (Shown below) untilthey come in contact with the unit jacket top,then evenly tighten all (4) screws to secureto unit. MODELS 926-1758 Heaters are shipped with outdoor vent terminal factory installed. MODELS 2100-4001 These units are not certifi...
Page 12 - Shut-off main electrical power switch to heater.
INDOOR INSTALLATIONS MODEL 133 Step 1. Shut-off main electrical power switch to heater. Step 2. Turn heater manual switch, located in upper control panel, to the "OFF" position. Step 3 . Shut-off gas supply and water supply to the heater. Step 4. Mount drafthood on heater and attach with the...
Page 13 - Make sure the
Fig. # 8167 MODELS 962-1826 Locate and assemble as shown below. Secure withscrews supplied in envelope in carton. Fig. # 8165 MODELS 2100-4001 These models have built-in drafthoods. For properoperation, the drafthood outlet must be connected tothe venting system. MODELS 514-824 Locate and assemble a...
Page 14 - VENT PIPING; Indoor heaters require a drafthood that
VENT PIPING WARNING: Indoor heaters require a drafthood that must be connected to a vent pipe and properly ventedto the outside. Failure to follow this procedure cancause fire or fatal carbon monoxide poisoning. Vent piping of the same size as the drafthood outlet is recommended, however, when the t...
Page 15 - VENT DAMPER INSTALLATION
(d) Place in operation the appliance being inspected. Follow the lighting instructions. Adjust thermostatso appliance will operate continuously. (e) Test for spillage at the drafthood relief opening after 5 minutes of main burner operation. Use theflame of a match or candle, or smoke from acigarette...
Page 16 - VENT DAMPER; For safe, efficient operation, the vent damper and
INSTALLING THE VENT DAMPER VENT DAMPER GENERAL WIRING DIAGRAM Fig. # 8183.0 Fig. # 8615.0 NO YES NO YES INSTALL VENT DAMPER WITH ACTUATOR TO SIDES OF VENT ONLY. DO NOT MOUNT ABOVE OR BELOW VENT. TO CHIMNEY TO BOILER D808 FLOW > HORIZONTAL INSTALLATION TO CHIMNEY TO BOILER D808 VERTICAL INSTALLATI...
Page 17 - Heater should be located so that any water leaks; GAS SUPPLY CONNECTIONS; Gas piping must have a sediment trap ahead of the
PLUMBING Fig. # 8090.1 GENERAL Heater should be located so that any water leaks will not cause damage to any adjacent areas or struc-tures. GAS SUPPLY CONNECTIONS Gas piping must have a sediment trap ahead of the heater gas controls, and a manual shut-off valvelocated outside the heater jacket. All ...
Page 19 - FLOW RATES
Page 20 - PIPING - DOMESTIC HOT WATER SUPPLY HEATERS; GENERAL SPECIFICATIONS
20 The table 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 measured in grains per gallon. Soft: 0-4 grains per gallon.Medium: 5-15 grains per gallon.Hard: 16 and ov...
Page 22 - TYPE NH - INSTANTANEOUS
TYPE NH - INSTANTANEOUS Type NH heaters provide instant hot water without a tank and are used in applications where scaling is prevalent and where hot water demand is fairly constant throughout the day, such as apartments, hotels, motelsand industrial applications. The Type NH heater should not be u...
Page 23 - MINIMUM INPUT ADJUSTMENT
1. Estimate total length of supply and return loop.Refer to table. 2. If multiple loops are used:(A) Use multiple pumps and size return pipes according to table; or (B) Use one larger recirculating pump with balancing valves on each return line. 3. First fixture on supply line must be a minimumof 20...
Page 24 - The intermittent ignition device conserves energy; RELIEF VALVE; A new combination temperature and pressure; ECONOMASTER CONTROL; The Economaster II is an electronic device that
OPERATING CONTROLS On models 514-1826, models with mechanical modulating controls have one or more RobertshawUnitrol 7000 Series hydraulic snap on thermostaticcombination gas valves. These valves have the pres-sure regulator and 24-volt operator built-in. The hy-draulic actuator will throttle the he...
Page 25 - MECHANICAL MODULATING VALVE LOCATION
whenever the pilot flame is interrupted. Pilot flame isautomatically lit when the device is powered. Unitperforms its own safety check and opens the mainvalve only after the pilot is proven to be lit. LOW WATER CUT-OFF (OPTIONAL) The low water cut-off automatically shuts down burner whenever water l...
Page 26 - COMPONENT IDENTIFICATION
26 COMPONENT IDENTIFICATION MANUAL RESET HIGH LIMIT THERMOSTAT CONTROL HIGH and/or LOW GAS PRESSURE SWITCH IGNITION CONTROL MODULE LOW WATER CUT-OFF MECHANICAL MODULATING VALVE FLOW SWITCH FLOW SWITCH PADDLE CUTTING GUIDE Fig# 9314 Fig# 8929.1 Fig# 9316 Fig# 9317 Fig# 8643 Fig# 9312 Fig# 8995 Fig# 8...
Page 27 - Label all wires prior to disconnection when; DANGER - SHOCK HAZARD; The heater is normally wired for 120 Volts. The; ELECTRICAL CONNECTIONS; Heater must be electrically grounded in accor-; SINGLE-STAGE TANKSTAT
CAUTION: Label all wires prior to disconnection when servicing controls. Wiring errors can cause improperand dangerous operation. Verify proper operation afterservicing. DANGER - SHOCK HAZARD Make sure electrical power to the heater is discon-nected to avoid potential serious injury or damage tocomp...
Page 28 - LOCATION OF CONTROLS
LOCATION OF CONTROLS 28 400WH1, WH2, WH3 181 (LOW NOx)WH1 Fig # 9360
Page 31 - When this heater is supplying general purpose
General Safety Precautions Maximum water temperatures occur just after burnerhas shut-off. To determine the water temperaturebeing delivered, turn on the hot water only, place athermometer in the stream, and read the thermom-eter. There is a hot water scald potential if the thermostat isset too high...
Page 32 - FOR MODELS WITH MANUAL GAS VALVES; FOR YOUR SAFETY READ BEFORE OPERATING; For Robertshaw Gas Valve:
TO TURN OFF GAS TO APPLIANCE LIGHTING INSTRUCTIONS FOR HEATERS WITH ELECTRONIC IGNITION (IID) FOR MODELS WITH MANUAL GAS VALVES FOR YOUR SAFETY READ BEFORE OPERATING WARNING:If you do not follow these instructions exactly, a fire or explosion may result causingproperty damage, personal injury or los...
Page 33 - FOR MODELS WITH AUTOMATIC GAS VALVES; Set temperature controls to desired temperature.; INTERMITTENT PILOT SYSTEM CHECKOUT PROCEDURE (S8600); BURNERS; Clean main burners and air louvers free of dust, lint; CONTROLS; Check all controls to see that they are operational.; INSPECTION PROCEDURES
FOR MODELS WITH AUTOMATIC GAS VALVES 1. Close all gas valves. Turn off electric powersupply. Wait five (5) minutes. 2. Open manual pilot valve. Turn on electricpower. Pilot is automatically lighted. 3. Open main gas valve. 4. Set temperature controls to desired temperature. TO SHUT DOWN Close all ma...
Page 35 - a. Spark will turn on and pilot gas valve will open and
The Raytherm Low NOx Heater is offered with WH1-On-Off firing (standard) or 2-stage firing (optional). The heaters are certified and tested under the latestedition of the ANSI Z21.10.3 standard for hot waterheaters. The heater should be installed to meet all local codes,the National Fuel Gas Code AN...
Page 36 - IID PILOT
36 BURNER TRAY REMOVAL 1. Shut-off main electrical power switch to heater. 2. Shut-off gas upstream of heater. 3. Remove front door. 4. Disconnect gas line from gas valve. 5. Remove (2) screws that mount burner tray to unit,and (4) screws that secure gas valve to jacket. 6. Disconnect wires that ter...
Page 37 - TROUBLESHOOTING - ELECTRICAL; HIGH VOLTAGE; START; Intermittent Pilot System
TROUBLESHOOTING - ELECTRICAL (ELECTRONIC IGNITION IID) WARNING HIGH VOLTAGE For qualified Technicians ONLY NOTE: Some heaters may be equipped withan ignition module that shuts off pilot gas ifpilot fails to light. To reset, interrupt powerto heater. NOTE: Before troubleshooting, familiarize yourself...
Page 38 - WIRING DIAGRAMS
Page 47 - TROUBLESHOOTING
MECHANICAL PROBLEM When heater is turned on nothinghappens. Thermostat in "ON" position causesrelay and pump to operate, butheater does not fire. Continuous shut down of manualreset High Limit. SootingCAUTION-Soot may be combus-tible. Wet down and exercisecaution when cleaning. Continuous sh...
Page 49 - TYPICAL BURNER TRAY ILLUSTRATED; If the heat exchanger is sooted badly, the
COMBINATION FLAME SENSOR/IGNITOR AND PILOT BURNER LOCATION TYPICAL BURNER TRAY ILLUSTRATED BURNER TRAY REMOVAL 1. Shut-off power and gas supply to the heater.Disconnect union(s) and pilot tubing, thenloosen and remove burner hold-down screws. 2. Disconnect wires at gas valve and slide burnerdrawer o...
Page 50 - REFRACTORY PANELS TOP VIEW; HEAT EXCHANGER RE-ASSEMBLY; DO NOT
REFRACTORY PANELS TOP VIEW HEAT EXCHANGER RE-ASSEMBLY 1. Heat exchanger water header O-rings should bereplaced with new ones. 2. Install in/out and return water headers andinstall header retainer nuts and torque nuts evenly. 3. Install the four (4) corner clips between tubesheets and refractory. Rep...
Page 51 - CLEANING FLUE GAS PASSAGEWAYS; Soot is combustible, so exercise extreme care.; REPLACEMENT PARTS; ILLUSTRATED PARTS LIST; CATALOG
9. DO NOT apply excessive torque during rolling operation and avoid thinning any wall of the tubebeyond 0.015". 10. Use same procedure on opposite end.11. Apply line pressure test. Re-roll if necessary.12. Reinstall as outlined under HEAT EXCHANGER REASSEMBLY. CLEANING FLUE GAS PASSAGEWAYS Soot ...
Page 52 - WARRANTY
52 WARRANTY LIMITED PARTS WARRANTY RAYTHERM™ COMMERCIAL HEATERS TYPES H, NH & WH MODELS 133 TO 4001 SCOPE: Raypak, Inc. ("Raypak") warrants to the original owner that all parts of this heater which are actually manufactured by Raypak willbe free from failure under normal use and service ...
Page 53 - Raypak Canada LTD
Raypak, Inc. , 2151 Eastman Avenue, Oxnard, CA 93030 (805) 278-5300 FAX (800) 872-9725 Raypak Canada LTD , 2805 Slough Street, Mississauga, Ontario, Canada L4T 1G2 (905) 677-7999 FAX (905) 677-8036 Litho in U.S.A. www.raypak.com