Instruction/ maintenance manual of the product NH Raypak
Go to page of 53
Models 0133-4001 T ypes WH & NH CATALOG NO. 3000.52G Effective: 11-01-04 Replaces: 02-01-04 FOR YOUR SAFETY WHAT TO DO IF YOU SMELL GAS *Do not try to light any appliance. *Do not touch any electrical switch; do not use any phone in your building.
TABLE OF CONTENTS 2 RECEIVING EQUIPMENT ........................................ 3 MODEL IDENTIFICATION ........................... 3 GENERAL SPECIFICATIONS ....................... 3 GENERAL SAFETY PRECAUTIONS .............. 4 INSTALLATION INSTRUCTIONS .
3 RECEIVING EQUIPMENT On receipt of the equipment, visually check for external damage to the carton or the shipping crate. If the carton or shipping crate is damaged, make a note on the Bill of Lading and report the damage to the Carrier immediately. Remove the heater from the carton or the shipping crate.
4 Be sure to read and understand the entire Instruction Manual before attempting to install or operate this water heater. Pay particular attention to the following general Safety Precautions. Failure to follow these warnings could result in a fire or explosion, causing property damage, bodily injury or death.
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.
CLEARANCES TO PROTECTED SURFACES Note 1: Combustible floor shield is required when heater is to be installed on a combustible surface. (See ordering info. on pg.5.) Note 2: Servicing Clearances: Provide at least 24" (Models 0133-1826), 48" (Models 2100-4001) in front of unit for removal & servicing of the Controls & Burner Tray.
SPECIFICATIONS AND DIMENSIONS MODELS 182-400 and 181-401 7 NOTE: Ratings 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. * Recovery based on manufacturer's rating.
8 MODELS 514-824 MODELS 962-1826 NOTE: Ratings 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. *Recovery based on manufacturer's rating. NOTE: Ratings are shown for elevations up to 2,000 feet.
9 MODELS 926-1758 MODELS 2100-4000 NOTE: Ratings 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. *Recovery based on manufacturer's rating. NOTE: Ratings are shown for elevations up to 2,000 feet.
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 installed under an overhang of less than three (3) feet from the top on the heater.
11 OUTDOOR INSTALLATIONS Step 2: Tighten the (4) screws (Shown below) until they come in contact with the unit jacket top, then evenly tighten all (4) screws to secure to unit. MODELS 926-1758 Heaters are shipped with outdoor vent terminal factory installed.
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.
Fig. # 8167 MODELS 962-1826 Locate and assemble as shown below. Secure with screws supplied in envelope in carton. Fig. # 8165 MODELS 2100-4001 These models have built-in drafthoods. For proper operation, the drafthood outlet must be connected to the venting system.
VENT PIPING WARNING: Indoor heaters require a drafthood that must be connected to a vent pipe and properly vented to the outside. Failure to follow this procedure can cause fire or fatal carbon monoxide poisoning.
(d) Place in operation the appliance being inspected. Follow the lighting instructions. Adjust thermostat so appliance will operate continuously. (e) Test for spillage at the drafthood relief opening after 5 minutes of main burner operation. Use the flame of a match or candle, or smoke from a cigarette, cigar or pipe.
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.
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 valve located outside the heater jacket.
18 A minimum of 7" WC and a maximum of 14" WC upstream pressure under load, and no load conditions must be provided for natural gas or a minimum of 12" WC and a maximum of 14" for propane.
19 FLOW RATES.
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.
21 TYPE WH - UNITEMP 80 SYSTEM PIPING DIAGRAMS.
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, motels and industrial applications.
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 minimum of 20 feet from the heater.
OPERATING CONTROLS On models 514-1826, models with mechanical modulating controls have one or more Robertshaw Unitrol 7000 Series hydraulic snap on thermostatic combination gas valves. These valves have the pres- sure regulator and 24-volt operator built-in.
whenever the pilot flame is interrupted. Pilot flame is automatically lit when the device is powered. Unit performs its own safety check and opens the main valve 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 level drops below probe.
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.
CAUTION: Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing. DANGER - SHOCK HAZARD Make sure electrical power to the heater is discon- nected to avoid potential serious injury or damage to components.
LOCATION OF CONTROLS 28 400 WH1, WH2, WH3 181 (LOW NOx) WH1 Fig # 9360.
29 Fig. #9334 LOCATION OF CONTROLS.
BEFORE START-UP Safe lighting and other performance criteria were met with the gas manifold and control assembly pro- vided on the heater when the heater underwent tests specified in the latest edition of the ANSI-Z21.10.3 Standard. GENERAL Before lighting up a new installation, water should be flowing through the heater.
General Safety Precautions 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 thermom- eter. There is a hot water scald potential if the thermostat is set too high.
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 causing property damage, personal injury or loss of life.
FOR MODELS WITH AUTOMATIC GAS VALVES 1. Close all gas valves. Turn off electric power supply. Wait five (5) minutes. 2. Open manual pilot valve. Turn on electric power. Pilot is automatically lighted. 3. Open main gas valve. 4. Set temperature controls to desired temperature.
PILOT BURNER FLAME-IID (atmospheric units) Inspect on the first and third month after initial start- up and then on an annual basis. If problems are found, refer to the Troubleshooting sections of this manual for additional directions. 1. Remove top of heater and inspect heat exchanger for soot and examine venting system.
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 latest edition of the ANSI Z21.10.3 standard for hot water heaters. The heater should be installed to meet all local codes, the National Fuel Gas Code ANSI Z223.
36 BURNER TRA Y REMOV AL 1. Shut-off main electrical power switch to heater . 2. Shut-off gas up stream 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.
TROUBLESHOOTING - ELECTRICAL (ELECTRONIC IGNITION IID) WARNING HIGH VOLTAGE For qualified Technicians ONLY NOTE: Some heaters may be equipped with an ignition module that shuts off pilot gas if pilot fails to light. To reset, interrupt power to heater.
WIRING DIAGRAM - WH2 182/260 38 WIRING DIAGRAMS.
WIRING DIAGRAM - WH2 330/400 39.
40 WIRING DIAGRAM - WH2 514/624.
41 WIRING DIAGRAM - WH2 724-1336.
42 WIRING DIAGRAM - WH2 1414-1826.
43 WIRING DIAGRAM - WH2 2100-2500.
44 WIRING DIAGRAM - WH2 3001-4001.
WIRING DIAGRAM - WH1 181/261 LOW NOx 45.
46 WIRING DIAGRAM - WH1 331/401 LOW NOx.
MECHANICAL PROBLEM When heater is turned on nothing happens. Thermostat in "ON" position causes relay and pump to operate, but heater does not fire. Continuous shut down of manual reset High Limit. Sooting CAUTION-Soot may be combus- tible. Wet down and exercise caution when cleaning.
FAILURE TO PUMP 1. Pump not properly primed. 2. Wrong direction of rotation. 3. Speed too low. 4. Total head too high. REDUCED CAPACITY AND/OR HEAD 1. Air pockets or leaks in suction line. 2. Clogged impeller. 3. Foot valve strainer too small or clogged.
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, then loosen and remove burner hold-down screws. 2. Disconnect wires at gas valve and slide burner drawer out.
REFRACTORY PANELS TOP VIEW HEAT EXCHANGER RE-ASSEMBLY 1. Heat exchanger water header O-rings should be replaced with new ones. 2. Install in/out and return water headers and install header retainer nuts and torque nuts evenly. 3. Install the four (4) corner clips between tube sheets and refractory.
9. DO NOT apply excessive torque during rolling operation and avoid thinning any wall of the tube beyond 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.
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.
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.
An important point after buying a device Raypak NH (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Raypak NH yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Raypak NH - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Raypak NH you will learn all the available features of the product, as well as information on its operation. The information that you get Raypak NH will certainly help you make a decision on the purchase.
If you already are a holder of Raypak NH, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Raypak NH.
However, one of the most important roles played by the user manual is to help in solving problems with Raypak NH. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Raypak NH along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
