INSTALLATION / OWNER’S MANUAL SCHWANK GAS FIRED STR - JZ SERIES LOW INTENSITY, TUBE-TYPE INFRA RED HEATERS WARNING: If the information in these instructions are not followed exactly, a fire or explosion may result causing property damage, personal injury or loss of life. Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance. WHAT TO DO IF YOU SMELL GAS Do not try to light any appliance.
NOTICE: Schwank Inc. reserves the right to make changes to equipment and specifications without obligation or notification. This publication, or parts thereof, may not be reproduced in any form, without prior written consent from Schwank Inc. Unauthorized use or distribution of this publication is strictly prohibited.
STR-JZ GARAGE & WORK SHOP INFRA-RED GAS TUBE HEATERS TABLE OF CONTENTS TOPIC PAGE NUMBER 1. GENERAL............................................ 1 2. INSTALLATION IN GARAGES ........ 2 3. PRE-INSTALLATION SURVEY........ 2 TUBE KIT MATRIX............................ 2 4. MOUNTING CLEARANCES.............. 2 5. SYSTEMS INCORPORATING 90 DEGREE BENDS AND 180-DEGREE ELBOWS .............................................. 4 6. SUSPENSION SYSTEM...................... 5 7. BURNER AND TUBE INSTALLTION ................
! WARNING: a. Due to high temperatures, the appliance should be located out of traffic and away from furniture and draperies. b. Children and adults should be alerted to the hazards of high surface temperature and should stay away to avoid burns or clothing ignition. c. Young children should be carefully supervised when they are in the same room as the appliance. d. Clothing or other flammable material should not be placed on or near the appliance. e.
SCHWANK GAS INFRA-RED TUBE HEATER STR-JZ SERIES INSTALLATION INSTRUCTIONS 1. GENERAL Installation of the Schwank STR-JZ Series gas-fired tube heaters must be performed by a qualified, licensed gas fitter and conform to all Schwank heating installation design procedures, including ventilation. All local, provincial and national code requirements must be met, ANSI/ NFPA No.
2. INSTALLATION IN GARAGES Schwank STR-JZ Series tube heaters are approved for use in garages. The installation must conform to local building codes or, in the absence of local codes, to the standard NFPA No. 54 (ANSI Z223.1 latest edition), in the U.S.A. and the CSA B149.1-00, and CAN1.2.16-M81 in Canada.
FIGURE 1 MINIMUM CLEARANCES TO COMBUSTIBLES D A F B B E C G TABLE 2 MINIMUM CLEARANCES TO COMBUSTIBLES** SUSPENDED AT AN ANGLE UP TO 45 DEGREES MODEL SUSPENDED HORIZONTALLY D F E G A B C STR-JZ 60 1.5” 1” 17” 34” 2.5” 5.5” 34” STR-JZ 45 2.25” 1” 24” 32” 2.75” 7” 32” **Clearances are in accordance with local installation codes and the requirements of the gas supplier.
TABLE 3 RECOMMENDED HEATER PLACEMENT MODEL MOUNTING HEIGHTS (FEET) MAXIMUM DISTANCE BETWEEN HEATERS (FEET) DISTANCE – OUTSIDE WALL TO HEATER LONG AXIS PARALLEL TO WALL (FEET) HORIZONTAL ANGLE STR-JZ 60 8 - 14 25 11 – 15 STR-JZ 45 6 - 10 20 8 – 12 COMBUSTIBLE CLEARANCE IMPORTANT: Continuous operation of single or multi-heater placement must not cause any combustible material in storage to reach a temperature in excess of 160OF. 5.
6. SUSPENSION SYSTEM 1) Survey the available structural supports, considering the system configuration and heat requirements of the area to establish the optimum heater location.
FIGURE 4 TYPICAL HANGER & SUPPORT SPACING RECOMMENDATIONS 1. 2. 3. 4. 5. 6. 7. 8. 9. Burner Assembly Flange Adapter Flanged Tube Swaged Tube Flue Vent Terminal End Plate Hanger Webbed Hanger Hanging Chains Focus Shield Reflector FIGURE 5 REFLECTOR STABILIZER FIGURE 6 PLATE HANGER/ELBOW INSTALLATION 4 2 4 6 3 6 5 1 5 3 2 JS-0508-JZ 1. Webbed-Hanger 2. Reflectors 3. Webbed-Hanger Flange UNDER Reflector 4. Webbed Hanger Flange to mount UNDER the next Reflector 5. 900 Elbow (shown) 6.
FIGURE 7 HANGER / REFLECTOR ORIENTATION HORIZONTAL TO 450 Top ring for horizontal mounting Side ring for angle mounting at 450 degrees Side ring for angle mounting at 450 degrees Using 2 x 900 elbows will transform straight tubes into a horizontal or angled “U” tube system as illustrated below RETURN IS ON TOP BURNER MUST BE LOWER THAN VENT FIGURE 8 SUGGESTED MOUNTING HARDWARE EYE BOLT THROUGH HOLE IN BEAM BEAM CLAMP WITH EYE SCREW EYE SCREW Page 7 PIPE RING OR CLEVIS HANGER BARJOIST SP-MSJR-B
9. BURNER AND TUBE INSTALLATION PRIOR TO PROCEEDING with the tube installation: Refer to section “8.
8) CHECK THAT THE SECOND TUBE IS LEVEL, ALIGNED HORIZONTALLY AND VERTICALLY WITH THE FIRST TUBE – MAKE ADJUSTMENT AT SUSPENSION POINTS AS REQUIRED 9) Install the reflector over the second tube fastening to the hangers at each end 10) Repeat the previous steps assembling one section of tube and reflector at a time until the system is complete 11) ENSURE THAT THE SYSTEM IS LEVEL AND THAT ALL TUBES ARE ALIGNED HORIZONTALLY AND VERTICALLY – MAKE ADJUSTMENT AT SUSPENSION POINTS AS REQUIRED 12) Mount the Burner t
TABLE 4 MODEL TURBULATOR LENGTH STR-JZ 60-30 14’ 0” STR-JZ 60-20 14’ 0” STR-JZ 45-20 14’ 0” STR-JZ 45-10 5’ 0” NOTE: Where required, the STR-JZ Series Heaters will be supplied with turbulators, factory installed into the end tube (s) of the system configuration. FIGURE 10 COUPLER 4 1 3 5 2 1. 2. 3. 4. Tube Tube Coupler Swaged section of tube Point at which the Swaged tube slides into other section of tube 5.
FIGURE 11 MOUNTING FOCUS SHIELD REFLECTOR TO PLATE HANGER 1 2 3 4 Webbed Hanger Flange under Reflector Screws to secure Reflector to Plate Hanger. Chain Hole for horizontal suspension Chain Hole for 45° suspension 5 Opening for Tube 6 Reflector 7 The following Reflector will mount over and onto this side of the Webbed Hanger. NOTE: For suspension between 1° and 44°, use both suspension points 3 and 4 (see details Fig.15 on Page 13). 8.
FIGURE 12 HANGER ARRANGEMENTS NOTE: Except for the vent end plate hanger, all hangers must be installed with the cavity side facing the burner end of the system - the cavity side of the vent end hanger must face the vent 1 1 Page 12 SP-MSJR-BX-08C STR-JZ Manual RD: NOV 2006 RL: 8C BA
FIGURE 13 REFLECTOR EXTENSIONS (OPTIONAL - IF REQUIRED ) 10” Using “S” Hooks attach the two Reflectors.
9. FLUE VENTING THIS STR-JZ SERIES IS APPROVED FOR DIRECT VENTING APPLICATIONS. THE SYSTEM MUST NOT BE OPERATED WITHIN A NEGATIVE AIR CONDITION, UNLESS COMBUSTION AIR IS BROUGHT IN FROM OUTSIDE DIRECTLY TO THE BURNER. IF A SEVERE NEGATIVE PRESSURE IS EXPERIENCED OR ANTICIPATED, THE SECOND PORT (BARB) ON THE BLOCKED FLUE SWITCH SHOULD BE CONNECTED DIRECTLY TO OUTSIDE AIR USING 1/4” PLASTIC HOSE FROM BLOCKED FLUE SWITCH TO OUTSIDE OF BUILDING (NOT SUPPLIED).
The heater is designed to operate with single wall 4” diameter 26 gauge minimum exhaust vent. When vent and combustion air are taken through the roof, the exhaust vent should always terminate higher than the combustion air intake, to prevent recycling the products of combustion back into the heater. FIGURE 17 The total maximum allowable combined length of vent and combustion air duct is 50' for STR-JZ 60 and 45.
Where the vent pipe passes through areas where the ambient temperature is likely to produce condensation of the flue gases, the vent pipe shall be insulated with a suitable material as approved and specified by the insulation manufacturer. Check with Schwank Technical Support as to the maximum vent temperature requirements. The vent system always must be adequately supported to prevent sagging.
Do not install filters on the combustion air intake. For ease of installation, this heater is complete with a fresh air intake duct hood. It can be used as an outdoor intake hood to bring combustion air to the heater from outside. If drawing in fresh air from outside, it is recommended as per common Engineering practice, that any single wall pipe exposed to cold air must be insulated to prevent condensation.
DO NOT use pressures greater than 1/2 psig. to pressure check the heater. TEST FOR LEAKS: All gas piping and connections must be tested for leaks after the installation is completed. Apply soap suds solution to all connections and joints and if bubbles appear, leaks have been detected and must be corrected. DO NOT USE A MATCH OR OPEN FLAME OF ANY KIND TO TEST FOR LEAKS. NEVER OPERATE THE HEATER WITH LEAKING CONNECTIONS.
12. HEATER EXPANSION The Btu/hr input and the tube length determine the overall expansion that occurs in a tube system. A typical infrared tube installation will expand toward both the Burner and the vent end. In order to address this issue it is suggested that the gas line, flue vent, and combustion air intake (if used) shall be installed in such a manner, that the normal expansion of the heater will be accommodated.
13. ELECTRICAL AND THERMOSTAT WIRING (SEE WIRING DIAGRAM PAGE 22) Wiring must be done in accordance with local codes. The total load of all heaters must be considered in determining the required contact rating of the controlling thermostat or switch. Each tube heater requires 120V, 60 HZ electrical power sized for 145VA. The heater can be controlled by the Schwank TruTemp Thermostat, a line voltage Thermostat or by an “ON/OFF" switch.
15. LIGHTING INSTRUCTIONS Refer to the lighting instructions on the outside cover of the burner housing. Again, if the unit locks out on safety, main power to the unit must be manually interrupted for a 30 second reset period before the heater can be restarted. NOTE: On initial installation, the unit may lock out on safety owing to the length of time required to bleed air from the gas piping system. 16. RECOMMENDED MAINTENANCE 1.
17. SEQUENCE OF OPERATION - HONEYWELL S87J-1034 The S87 is powered by a 25v transformer and activated when the thermostat calls for heat. On every call for heat the S87J will delay start-up to provide a 30 second system pre-purge. When the S87 is activated by a thermostat or call for heat an internal transformer provides power to the electronic generator circuit for Spark Ignition and the safety lockout timing begins.
STR-JZ SERIES: WIRING DIAGRAM - HONEYWELL S87J1034 Caution: Label All Wires Prior To Disconnection When Servicing Controls. Wiring Errors can cause improper and dangerous operation. Verify proper operation after servicing.
18. STR-JZ SERIES: TROUBLESHOOTING GUIDE HONEYWELL S87J1034 120V THERMOSTAT APPLY 115 VOLTS—GREEN LIGHT IS ON ON 24V OPTION ONLY: THE SWITCHING RELAY ENERGIZES, SENDING 115 VOLTS TO THE BLOWER SET THERMOSTAT TO CALL FOR HEAT CHECK IF 115 VOLTS PRESENT AT BLOWER IF SO............REPLACE DEFECTIVE BLOWER COMBUSTION AIR BLOWER STARTS NO ON 24V OPTION ONLY: CHECK FOR II5V FROM SWITCHING RELAY. CHECK 24V SIDE OF RELAY VOLTAGE. CHECK 115V LINE SIDE OF RELAY VOLTAGE. CHECK OPERATION OF BOTH CIRCUITS.
cont’d CHECK FOR GOOD SPARK AT IGNITER.....(SEE PREVIOUS PAGE) CHECK FOR 25 VAC ACROSS GAS VALVE.CHECK OUTPUT VOLTAGE FROM CONTROL TERMINALS TO GAS VALVE....IF NO VOLTAGE REPLACE CONTROL. CHECK ELECTRICAL WIRING, AND VOLTAGE BETWEEN IGNTION CONTROL AND GAS VALVE MAIN BURNER LIGHTS NO YES CONTROL IS NOT SENSING FLAME WITHIN THE 21 SECOND TFI AND IS STILL TRYING TO LIGHT CHECK CONTINUITY OF SENSOR CABLE AND GROUND WIRE. CHECK BURNER FLAME IS COVERING SENSOR.
19. SPARK IGNITION CIRCUIT The step-up transformer in the ignition control provides spark ignition at 30,000 volts (open circuit). To check the spark ignition circuit, proceed as follows.
20. FLAME SENSING CIRCUIT 21. START-UP SHEET The output of the flame sensing circuit cannot be checked directly on the S87 body. Check the flame sensing circuit directly by checking the flame sensing current from the sensor to the S87 as follows. 1. Connect a meter (dc microammeter scale) in series with the flame signal ground wire as shown below. Using the Honeywell W136A Test Meter or equivalent. Disconnect the ground wire from the S87.
COMMISSIONING REPORT AS PER I&O MANUAL AND LOCAL CODES CONTRACTOR NAME: ................................................................................DATE................................ ADDRESS:............................................................................................................................................ ............................................................................................................................................................ CITY:...........
TO BE COMPLETED BY THE LICENSED INSTALLER TUBE HEATER COMMISSIONING REPORT TYPE OF GAS: NG LP DOES BUILDING HAVE A NEGATIVE CONDITION: YES NO IF THIS IS A HIGH ALTITUDE AREA WHAT IS THE ALTITUDE ABOVE SEA LEVEL Feet DOES APPLICATION REQUIRE FRESH AIR TO BURNER YES NO IS HEATER EXPOSED TO CHEMICAL OR CORROSIVE ATMOSPHERE: YES NO ARE ACTUAL MINIMUM CLEARANCES AS PER TABLE 3 YES NO CAN HEATER BE AFFECTED BY OVERHEAD CRANES / VIBRATION YES NO ARE GAS SUPPLY LINES ADEQUATELY SIZED FOR SYSTEM
21.
90 degree Aluminized Steel Elbow Kit* *Kit includes: elbow, coupler, reflector and plate hanger. JS-0508-JZ For 180 degree Elbow Applications order 2 x 90 degree Elbow kits.
#8 Hanging Chain - (box of 50 ft) JL-0798-JC Touch Up Paint High Temp, 369g aerosol can JA-0587-XX Side Reflector Extension Kit l0” deep, l0 ft long Each JS-0509-KT Tube Protection Screen -5 feet long JA-0780-XX Page 32 SP-MSJR-BX-08C STR-JZ Manual RD: NOV 2006 RL: 8C BA
LIMITED WARRANTY CERTIFICATE FOR GAS-FIRED INFRA-RED LOW INTENSITY TUBE HEATERS: STS-JZ / IQ, STV-JZ / IV, STW-JZ / IW, SPW-JZ / IWP & STR-JZ SERIES The Manufacturer warrants that this product is free from defects in material or workmanship under normal use and service subject to the terms of this document.
