THERMON RGX Series Buku Lachidziwitso Lachidziwitso Chovuta Kwambiri Chokakamiza Air Unit Heaters
MALANGIZO OFUNIKA
CHENJEZO. This symbol indicates a potentially hazardous situation, which, if not avoided, may result in personal injury or damage to the equipment.
CHENJEZO. This symbol indicates an imminently hazardous situation, which, if not avoided, can result in serious injury or damage to the equipment.
CHENJEZO. Read and adhere to the following. Failure to do so may result in a risk of fire, electrical shock, and severe or fatal injury. Warranty will be void.
- Read and follow all instructions in this manual.
- This heater is intended to be used for commercial and industrial indoor space heating applications.
CHENJEZO. Heater is not to be used in hazardous atmospheres where flammable vapors, gases, liquids or other combustible atmospheres are present.
- Heater is to be connected and serviced only by a qualified electrician.
- Installation and wiring of the heater must adhere to all applicable codes.
- Disconnect heater from power supply at disconnect or fuse box before opening enclosures or servicing heater. IF DISCONNECT IS BEING SERVICED, verify power has been disconnected at fuse box or main panel. Lock the switch in the “CHOLETSA” (open) position and tag the switch to prevent unexpected power application.
CHENJEZO. Elements get hot during operation. Contact can cause burns.
- Do not operate heater in wet and humid environments.
- Install and maintain clearances as per this manual.
- Do not operate the heater in corrosive atmospheres.
- Use factory replacement parts only.
- Maximum ambient operating temperature is 40°C (104°F).
- Do not operate the heater with the louvers deformed or damaged.
- If there are any questions or concerns regarding the heater, please refer to contact information on the back page of this manual.
- Follow the recommended maintenance procedures under Section I – Heater Maintenance Instructions, page 15.
unsembe
All applicable codes must be adhered to. For optimum performance, the heater should be installed as follows:
Location
- Ensure there are no obstructions that may impede the heater’s air inlet or discharge. Refer to Figure 1 – Mounting Clearance, for minimum clearances.
- Ensure the air discharge is not directed at a thermostat.
- Ensure the air discharge is not directed towards areas of heat loss, such as windows.
- Ensure the air discharge is directed along and at a slight angle toward exterior walls.
- If equipment freeze protection is important, direct air discharge at equipment while maintaining minimum clearances.
PAMODZI VIEW
KONANI VIEW
WALL MOUNT WITH CLEARANCES
CEILING MOUNT WITH CLEARANCES
WIRING ENTRANCE AREA TOP VIEW CEILING MOUNT WITH CL
VERTICAL AIR FLOW
ogwiritsa
CHENJEZO. Install heater no less than 5 inches (127 mm) from walls and 6 inches (152 mm) from ceiling. Mount with bottom of heater at least 2.44 m (8 ft) above floor or grade.
- The heater must be permanently mounted to a fixed location onto a wall or ceiling.
- The mounting surface must be strong enough to:
- Support the heater’s weight.
- Provide sufficient stiffness to prevent excessive vibration.
Table 1 – Heater & Bracket Dimensions
Choyipa. 15-50 kW mu. mm A 23 584 B 18 1 / 2 470 C (Kuzama) 19 483 R (Hole dia.) 5 / 8 16 S 17 1 / 2 445 T 6 152 U 6 152 W (Hole dia.) 3 / 4 19 Table 2 – Installation Height & Heater Weight
kW Recommended Mounting Height – ft (m) Heater Weightlbs (kg) 15 - 30 8 - 12 (2.4 - 3.6) 105 (47.6) 40 - 50 8 - 12 (2.4 - 3.6) 125 (56.7)
- The single bolt mounting is not designed for high dynamic loads that can occur during transportation. For heaters that are to be installed prior to transportation, it is recommended that temporary blocking or strapping be used to limit movement of the heater with respect to the mounting structure. Inspection of the mounting bolt for correct tensioning is also recommended after arrival at site to ensure no loosening has occurred in transportation. The mounting bolt/nut should be torqued to 65 – 75 ft‑lbs, refer to Table 4 – Recommended Torque Specifications, page 13.
- Install the bracket on the heater with hardware provided.
- Orient the heater to its final position before tightening all hardware.
- In higher vibration installations use of a removable thread locking compound such as Loctite® 243TM Blue Threadlocker is recommended.
- Correct tensioning of the mounting bolt will include full compression of the split lock washer and inspection for correct thread engagement. The mounting bolt/nut should be torqued to 65 to 75 ft‑lbs.
- The discharge air louvres are individually adjustable.
- The heater is CSA approved to operate with vertical down flow or horizontal air flow discharge. Refer to Figure 1 – Mounting Clearance, page 4 and Table 2 – Installation Height & Heater Weight, page 4 for vertical down flow and horizontal air flow mounting recommendations
magetsi
CHENJEZO. Disconnect heater from power supply at integral disconnect or fuse box before opening enclosures or servicing heater. Lock the switch in the “OFF” (open) position and tag the switch to prevent unexpected power application. This heater should only be serviced by qualified personnel with electrical heating equipment experience. Install and use the heater in accordance with local codes and this manual.
- General
- Use only approved copper conductors for installation. Refer to Section G – Technical Data, page14 and heater data plate for conductor rating.
- The power supply may be single or three phase as shown on the nameplate. Wiring diagrams are located on the inside of the control cabinet door (or refer to B.4 Sample Wiring Schematics – RGX Series Heater, page 8.
- Field Wiring
- Select a conduit style and conduit entrance fitting suitable for EEMAC 12 (dust tight and drip tight – indoor) applications. This is important since contamination of the control cabinet interior could significantly reduce the operating life of the control components.
- Remove the cabinet door to facilitate electrical access and connection.
- The control cabinet of the heater is constructed to EEMAC 12 standards and as such, we are not permitted to supply knockouts. After selection of the conductor and conduit entrance sizes, punch the appropriate hole into the control cabinet. We recommend the hatched area indicated in Figure 1 – Mounting Clearance “Wiring Entrance Area – Top View”, page 4 be used for ease of internal electrical connection.
- Grounding – a ground lug is located beside the terminal block. Ensure the unit is properly grounded before energizing.
- The heater is completely prewired internally. Connect the power conductors and any control conductors to the terminals as illustrated on the wiring diagram located inside the control cabinet door.
- Motor Rotation – Important
- Three phase heaters are supplied with motors of corresponding phase. The proper motor/fan rotation, viewed from the rear of the heater is counter clockwise. Incorrect rotation of the fan will cause the heater to overheat and cycle on the high limit. To reverse the fan rotation, interchange two supply voltage conductors connected to lugs L1, L2.
- kutentha Control
- Thermostat Yopangidwira – heaters with a factory installed thermostat have all other standard controls such as contactors, and transformers factory installed and prewired.
- Thermostat Kit Fat-8A – (Field installed) Install the FAT8A thermostat kit in accordance with the instruction sheet provided.
- Remote Line Voltagndi Thermostat – A remote thermostat rated to operate as a pilot duty, inductive device on 240V is required. For proper installation and wiring of the selected thermostat, refer to the manufacturer’s instructions. Thermon can supply appropriate thermostats.
- Remote Low Voltagndi Thermostats – The heater can be provided with a low voltage control internally wired for remote connection to 24V thermostats. Ensure that this control option is installed in the heater before energizing a low voltage thermostat from the heater. For proper installation and wiring of the selected thermostat, refer to the manufacturer’s instructions. The rmon can supply low voltage thermostats for use with heaters.
- “Continuous Fan” Feature (Summer Switch)
- The “Continuous Fan” feature will allow the heater to cycle in a “heat” mode dictated by the controlling thermostat, even though the fan is operating continuously.
- Terminals are provided for remote mount of a S.P.S.T. “Continuous Fan” switch, rated 240V 60 Hz. A jumper across terminals “T2” and “T3” is installed at the factory, and must be removed and substituted with the remote switch leads if this feature is to be available. Refer to Section B.4 Sample Wiring Schematics – RGX Series Heater, page 6 to 9.
- A “Continuous Fan” switch may be factory installed (optional feature) directly in the heater.
- Kuchedwa kwa Fan
- All heaters incorporate a fan delay feature in both the “PA” ndi “CHOLETSA” cycles. This is a desirable feature allowing the heater to come to temperature before the fan operates (no cold blasts) and to cool down in the “CHOLETSA” cycle (longer life for the control components and motor). Delay “PA” is 20-50 seconds and delay “CHOLETSA” is 20-70 seconds.
- Remote Energy Management Control
- Remote energy management control is standard on 40 kW and 50 kW units. Internal power to contactor coil C2 may be interrupted and controlled remotely by removing the jumper between terminals “T2” and “T3”, and then connecting a passive contactor in its place. A closed contact will allow 100% heating capacity and an open contact will allow 50% heating capacity. Refer to Section B.4 Sample Wiring Schematics – RGX Series Heater, page 6 to 9.
- Kuyendera Komaliza
- Before application of electrical power:
- Check that all connections are secured and comply with the applicable code requirements.
- Tsimikizirani kuti voltage is compatible with the data plate specifications.
- Remove any foreign objects from the heater.
- Ensure all external fittings and enclosure covers are secured.
- Ensure that the fan rotates freely.
- If equipped, ensure manual reset thermal cut-out has been reset.
Sample Wiring Schematics – RGX Series Heater
If the wiring schematics in Figure 2 to Figure 7, page 6 to 9, do not match your configuration, check inside the control panel door of the unit for specific wiring schematic. Alternatively, all wiring schematics are available online at www.thermon.com.
Figure 2 – 480V and 600V with Controls
Sample Wiring Schematics – RGX Series Heater (Cont’d)
If the wiring schematics in Figure 2 to Figure 7, page 6 to 9, do not match your configuration, check inside the control panel door of the unit for specific wiring schematic. Alternatively, all wiring schematics are available online at www.thermon.com.
Figure 3 – 208V and 240V Three Phase with Controls
Figure 4 – 208V and 240V Three Phase without Controls
Sample Wiring Schematics – RGX Series Heater
If the wiring schematics in Figure 2 to Figure 7, page 6 to 9, do not match your configuration, check inside the control panel door of the unit for specific wiring schematic. Alternatively, all wiring schematics are available online at
www.thermoncom.
Figure 5 – 208V and 240V Three Phase with Controls
Figure 6 – 240V Single Phase without Controls
ZINDIKIRANI*: Requires special certification
Sample Wiring Schematics – RGX Series Heater (Cont’d)
If the wiring schematics in Figure 2 to Figure 7, page 6 to 9, do not match your configuration, check inside the control panel door of the unit for specific wiring schematic. Alternatively, all wiring schematics are available online at
www.thermoncom.
Figure 7 – 240V Single Phase with Controls
ZINDIKIRANI*: Requires special certification
KULEMEKEZA
General
- To operate heater, ensure power supply is properly connected as specified in the wiring schematic (refer to Figure 2 to Figure 7, page 6 to 9).
- If the heater is setup to operate on a thermostat, ensure the temperature set point is set high enough to turn on the heater.
- The fan motor will not start immediately.
- After a delay of 20-50 seconds, the fan contactor will operate and the fan will start. See paragraph B3.3 for proper fan rotation.
- During normal operation, the thermal cut-out control should not cycle the heater ON and OFF. If cycling occurs, check to see if there is an airflow blockage. If there are no obstructions, the heater must be examined by qualified personnel to determine the cause of the thermal cut-out cycling.
- Operate the unit for a minimum of 10 minutes to allow the heating elements to reach a steady state. If no warm air is discharged from the heater, shut off the unit and refer to Section F. Troubleshooting Tips, page 13.
- To shut off heater turn the thermostat to lowest set point.
- The main contactor(s) will de-energize the elements.
- The fan motor will continue to operate, purging the residual heat from the elements.
- After a delay of 20-70 seconds, the fan contactor will open and the fan will stop.
KUKONZA & KUSINTHA
CHENJEZO. Disconnect heater from power supply at integral disconnect or fuse box before opening enclosures or servicing heater. Lock the switch in the “CHOLETSA” (open) position and tag the switch to prevent unexpected power application. This heater should only be serviced by qualified personnel with electrical heating equipment experience. Install and use the heater in accordance with local codes and this manual.
ZINDIKIRANI*: ONLY USE FACTORY SUPPLIED REPLACEMENT PARTS OF THE SAME SPECIFICATION. REFER TO TABLE 3
Zotenthetsera
- Disconnect all wires connected to the heating element terminals. Remove louver assembly from heater. Remove three heater cowl baffles. Remove heating elements, noting their proper placement.
- Install factory-supplied replacement heating element (onani Chithunzi 8 – Heating Element Assembly, page 10).
Figure 8 – Heating Element Assembly
0.1 Ensure that the heating element attaching screws are in good condition.
0.2 Re-attach heating element mounting screws and tighten.
0.3 Check that the heating elements are not in contact with the cabinet or each other. - Reinstall all wires with hardware provided. Torque the element terminal hardware to the torque specifications, refer to Table 4 – Recommended Torque Specifications, page 13.
- Reinstall heater cowl baffles.
- Reinstall the louvers.
GAWO ZONSE
Parts Assembly Diagram & Chart
katunduyo | DESCRIPTION |
1 | CABINET BOX ASSEMBLY |
2 | KHOMO LA KABUTI |
3 | WOTHANDIZA |
4 | MAFUNSO |
5 | ZINTHU ZOTHANDIZA |
6 | FUSA |
7 | MALIRE KWAMBIRI |
8 | DISCHARGE LOUVRE |
9 | Engine |
10 | MOTOR PHIRI |
11 | SPLITTER BLOCK |
12 | TERMINAL BLOCK |
13 | ACHALANDATUL |
14 | TIME DELAY RELAY |
15 | thiransifoma |
16 | BAFFLE, CONT. PANEL SIDE |
17 | BAFFLE, TOP |
18 | BAFFLE, BOTTOM |
MALANGIZO OVUTA
Heater is not operating
- Onani ma fuse onse.
- Check disconnect switch.
- Fufuzani voltage supplied to the heater – refer to the heater data plate for voltage zofunika.
- Check control voltage if transformer is installed.
- Check thermostat by turning it and check continuity.
- Check the condition of the disconnect switch if the heater is so equipped. Measure continuity through the disconnect by engaging the switch.
- Verify that there is a jumper wire present between the terminals as per the wiring schematics (refer to Figure 2 to Figure 7, page 6 to 9), if your heater is wired with this feature.
- If problem still exists, contact factory.
Contactor is chattering
- Onani voltage.
- Check control voltage if transformer is installed.
- Check wiring connections. Tighten all loose electrical connections.
- Check thermostat for continuity. If thermostat does not break continuity replace thermostat.
- Check for excessive heater vibration.
- Do not operate if problem persists. Contact factory
Contactor is burned or welded
- Check the contactor for burn marks and blackening. If present, replace the contactor.
- Check incoming power to the heater to ensure there are no voltagkusinthasintha.
- Check heating element for continuity.
- Check motor for continuity.
- Check thermostat for continuity. If thermostat does not break continuity replace thermostat.
- Do not operate if problem persists. Contact factory
Heater cycles on high limit
- Check the inlet and discharge louvers for air blockage.
- Check for heating element fouling.
- Ensure motor is functioning and fan is rotating counter clockwise when viewed kuchokera kumbuyo.
- Do not operate the heater if problem persists. Contact factory
Heater is operating but no heat is present
- Ngati muli ndi “CONTINOUS FAN” switch, ensure the switch is in the "ZOTHANDIZA" Udindo.
- Check the control voltage to the contactor coil, if unit is equipped with a contactor and transformer. If voltage is not within specification replace the transformer.
- Measure and record all element resistances. Contact factory to verify if elements are within specifications. If not within specification replace heating element(s).
- If problem persists, contact factory.
Heater fan does not operate but the heating elements operate
- Ensure fan blade spins freely to check motor bearings. Replace motor as required.
- Do not operate unit. Contact factory
The Ground Fault Interrupter (GFI) trips on the main panel, or heater blows fuses
- Check that you have a fuse of the proper ampmlingo wa erage.
- Check for loose or frayed wiring.
- If condition is not observable, send heater in for repair
The fan is turning but very little air comes from the front of the heater
- The proper motor/fan rotation, viewed from the rear of the heater is counter clockwise. Refer to the Section B – Installation, page 3.
- Check fan blade set screws to ensure fan blade is not loose on the motor shaft.
- Do not operate. Contact factory.
Table 4 – Recommended Torque Specifications
katunduyo | Inch Pounds | |
Zotenthetsera | without bus bars | 16 |
with bus bars | 30 | |
Wothandizira | 18-22 | |
Mounting Bolt/Nut | 65-75 (ft-lbs) |
NKHANI ZOPHUNZIRA
Table 5 – Technical Data
ZINDIKIRANI*: Single phase units require special certification”
ZINDIKIRANI
- Njinga voltage and phase is same as heater supply.
- Standard control voltage is 240V. A control transformer is included where required. Other control voltages are available (check factory).
- 15, 20, 25, 30 kW units are pre-wired as one circuit. The split load feature (50%) is available as an option.
- 40 and 50 kW units are pre-wired for split load (50%) control by customer unless specified otherwise.
- All motors are 1/3 HP, totally enclosed ball bearing type, permanently lubricated, thermally protected.
ZINTHU ZOFUNIKA
Nominal kW | |||||||
15 | 20 | 25 | 30 | 40 | 50 | ||
Fani Diameter | mu. | 16 | |||||
mm | 406 | ||||||
Kutumiza kwa Mlengalenga | CFM | 1800 | 2100 | 2200 | |||
m7 / hr | 50 | 60 | 62 | ||||
Horizontal Throw | ft | 35 | 45 | 47 | |||
m | 10.7 | 10.7 | 14.3 | ||||
Normal Mounting Height*Horizontal (to underside) or Vertical (to discharge louvers) | ft | 8.0 - 12.0 | |||||
mm | 2.4 - 3.6 | ||||||
Kutumiza katundu | lbs | 105 | 105 | 125 | |||
kg | 47.6 | 47.6 | 56.7 |
*Recommended mounting height to ensure warm air reaches the floor.
HEATER MAINTENANCE CHECKLIST
Heater Model_____
Nambala ya siriyo_____
Comments_____
Date of Maintenance_____
Maintenance Done By_____
Nthawi ndi nthawi (before and as required during heating season)
- Clean – Use compressed air only.
- Zotenthetsera
- Otsatira
- Njinga
- Kulowetsa Grille
- zimakupiza
Chaka chilichonse
- Electrical Check (before heating season)
- All terminal connections and conductors.
Tighten loose connections. Conductors with damaged insulation must be replaced. - Electrical resistance on all load side legs.
Reading should be balanced (± 5%).
- All terminal connections and conductors.
CHENJEZO. Disconnect heater from power supply at integral disconnect or fuse box before opening enclosures or servicing heater. Lock the switch in the “OFF” (open) position and tag the switch to prevent unexpected power application. This heater should only be serviced by qualified personnel with electrical heating equipment experience. Install and use the heater in accordance with local codes and this manual.
CHENJEZO. Gwiritsani ntchito chotenthetsera ichi monga tafotokozera m'bukuli. Ntchito ina iliyonse yomwe wopanga sanayivomereze itha kuyambitsa moto, kugunda kwamagetsi, kapena kuvulaza anthu.
- Mounting & Motor Check
- All mounting hardware condition and tightness
- Motor for smooth, quiet operation
- Mechanical Check
- Check heating elements for corrosion and debris buildup. Clean as required.
- Check motor shaft bearing play. Replace motor if play is excessive, or if motor does not run quietly and smoothly. Bearings are permanently lubricated.
- Check fan. Replace immediately if cracked, damaged, or out of balance.
- Check tightness of all hardware. All fasteners must be tight.
- Turn heater on for a minimum of five minutes. Check for warm air exiting heater through discharge louvers.
For further assistance, please call 24hr hotline: 1-800-661-8529 (U.S.A. and Canada) Please have model and serial numbers available before calling
CHIKONDI
Under normal use the Company warrants to the purchaser that defects in material or work manship will be repaired or replaced without charge for a period of 18 months from date of shipment, or 12 months from the start date of operation, whichever expires fi rst. Any claim for warranty must be reported to the sales offi ce where the product was purchased for authorized repair or replacement within the terms of this warranty.
Kutengera ndi malamulo a Boma kapena Provinsi, kampani sidzakhala ndi mlandu uliwonse pakukhazikitsa, kuchotsa ntchito, mayendedwe, kapena kuwonongeka kwamtundu uliwonse, kuphatikiza zowonongeka chifukwa chosagwiritsa ntchito, kusokonezedwa kwa bizinesi, kapena mwangozi kapena zotsatira zake. zowonongeka.
The Company cannot anticipate or control the conditions of product usage and therefore accepts no responsibility for the safe application and suitability of its products when used alone or in combination with other products. Testsfor the safe application and suitability of the products are the sole responsibility of the user.
Chitsimikizochi chidzakhala chopanda ntchito ngati, pakuweruza kwa Kampani, kuwonongeka, kulephera kapena kulephera kwachitika chifukwa cha:
- Kugwedezeka, ma radiation, kukokoloka, dzimbiri, kuipitsidwa kwa njira, zochitika zachilendo, kutentha ndi kupanikizika, mafunde achilendo kapena kugunda, kuipitsidwa, kuvala wamba ndi kung'ambika, kusowa kosamalira, kugwiritsa ntchito molakwika zida monga vol.tage, air, gas, water, and others or any combination of the aforementioned causes not specifi cally allowed for in the design conditions or,
- Zochita zilizonse zomwe Wogula, othandizira ake, antchito ake kapena makontrakitala odziyimira pawokha, motsimikizika, koma osati kuti achepetse kuchuluka kwa zomwe tafotokozazi, zikuphatikiza nkhanza zakuthupi, zamankhwala kapena zamakina, ngozi, kuyika molakwika kwa chinthucho, kusunga molakwika. ndi kasamalidwe ka mankhwala, kugwiritsa ntchito molakwika kapena kusalongosoka kwa magawo.
No warranty applies to paint fi nishes except for manufacturing defects apparent within 30 days from the date of installation. The Company neither assumes nor authorizes any person to assume for it any other obligation or liability in connection with the product(s).
Wogula amavomereza kuti ntchito zonse zotsimikizira zomwe zimafunidwa pambuyo potumiza koyambirira kwa chinthucho zidzaperekedwa pokhapokha ngati Kampani yalipidwa ndi Wogula mogwirizana ndi zomwe zili mu mgwirizano.
The Purchaser agrees that the Company makes no warranty or guarantee, express, implied or statutory, (including any warranty of merchantability or warranty of fi tness for a particular purpose) written or oral, of the Article or incidental labour, except as is expressed or contained in the agreement herein.
KUKHULUPIRIRA
Deta yaukadaulo yomwe ili mukatalogu kapena pa website is subject to change without notice. The Company reserves the right to make dimensional and other design changes as required. The Purchaser acknowledges the Company shall not be obligated to modify those articles manufactured before the formulation of the changes in design or improvements of the products by the Company.
The Company shall not be liable to compensate or indemnify the Purchaser, end user or any other party against any actions, claims, liabilities, injury, loss, loss of use, loss of business, damages, indirect or consequential damages, demands, penalties, fi nes, expenses (including legal expenses), costs, obligations and causes of action of any kind arising wholly or partly from negligence or omission of the user or the misuse, incorrect application, unsafe application, incorrect storage and handling, incorrect installation, lack of maintenance, improper maintenance or improper operation of products furnished by the Company.
Edmonton
1-780-466-3178 F 780-468-5904 5918 Roper Road Alberta, Canada T6B 3E1
Oakville
1-800-410-3131 1-905-829-4422 F 905-829-4430
Orillia
1-877-325-3473 1-705-325-3473 F 705-325-2106
Houston
1-800-654-2583 1-713-433-2600 F 713-433-4541
Denver
1-855-244-3128 1-303-979-7339 F 303-979-7350
Zolemba / Zothandizira
![]() |
THERMON RGX Series Wolemera Kwambiri Wokakamizidwa Air Unit Heaters [pdf] Buku la Malangizo RGX Series, Heavy Duty Forced Air Unit Heaters, RGX Series Heavy Duty Forced Air Unit Heaters, Forced Air Unit Heaters, Unit Heaters, Heaters |