GUX SERIES Explosion-Proof Unit Heater
Technical Specifications:
Temp Range: 50°-120°F (10°-49°C)
CFM: 550-3850
Classes:
- Class I, Divisions 1 and 2, Groups C & D
- Class II, Divisions 1 and 2, Groups E, F & G
- Class I, Zones 1 and 2, Group IIB
Ideal Spaces:
- Aircraft Hangars/Service Areas
- Chemical Storage/Handling Areas
- Coal Preparation Plants
- Compressor Stations
- Grain Elevators & Petrochemical Plants
- Oil Refineries & Rigs
- Paint Storage Areas & Spray Booths
- Sewage Pump Stations
- Treatment Plants
Color: Beige
Certifications: C US SP, 1 Year Element Warranty, 1 Year Workmanship Warranty
Product Features:
- Corrosion-resistant constructions suitable for most applications
- Welded steel heat exchanger with powder-coated cabinet for dry, non-corrosive areas
- 316 stainless steel for waste water treatment plants
- Heresite® coating for chemical plants with chlorides
- IP55 motor and type 4 outdoor rated enclosure for wet locations - meets UL 1004-1 raintight requirements
- Industry's lowest ignition temperature code rating, T3C, 320°F (160°C)
- Automatic and manual reset overtemperature cutouts
- Low 70 PSIG relief valve setting - in an emergency, the initial escaping vapor is below the ignition temperature
Standard Construction Features:
- Industrial grade, corrosion resistant cabinet/louvers fabricated from beige powder coated 14-gauge galvanized steel with minimum opening safety stops
- Industrial grade heating elements are treated, to provide freeze protection as low as -49°F (-45°C)
- Prewired fan motor assembly with double-shielded, permanently lubricated ball bearings and automatic reset line breaking thermal overload protection - separate field wiring to the motor is not required
- Factory built-in controls include overtemperature cutouts, controlling magnetic contactor, and 24-volt control circuit transformer housed in a NEMA 7, 9 cast aluminum enclosure
60 Hz Models & Specifications:
| ITEM INFORMATION | ELECTRICAL DATA | MOTOR | AIR FLOW | FRAME SIZE | SHIP WT. | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| CATALOG NO. | VOLTS | PHASE | TOTAL AMPS | KW | HP | RPM | FAN BLADE DIAMETER | RISE** | CFM | THROW | ||
| GUX-233-FA-0036C | 208 | 1 | 17 | 1/4 | 1725 | 12" | 15°F | 650 | 15" | 1 | 130 lbs | |
| GUX-233-FA-0036J | 240 | 1 | 15 | 1/4 | 1725 | 12" | 15°F | 650 | 15" | 1 | 130 lbs | |
| GUX-233-FA-0036D | 208 | 3 | 10 | 1/4 | 1725 | 12" | 15°F | 650 | 15" | 1 | 130 lbs | |
| GUX-233-FA-0036K | 240 | 3 | 9 | 3.0 | 1/4 | 1725 | 12" | 15°F | 650 | 15" | 1 | 130 lbs |
| GUX-233-FA-0036U | 480 | 3 | 5 | 1/4 | 1725 | 12" | 15°F | 650 | 15" | 1 | 130 lbs | |
| GUX-233-FA-0036Z | 600 | 3 | 4 | 1/4 | 1725 | 12" | 15°F | 650 | 15" | 1 | 130 lbs | |
| GUX-233-FA-0056C | 208 | 1 | 26 | 1/4 | 1725 | 12" | 25°F | 650 | 15" | 1 | 130 lbs | |
| GUX-233-FA-0056J | 240 | 1 | 23 | 1/4 | 1725 | 12" | 25°F | 650 | 15" | 1 | 130 lbs | |
| GUX-233-FA-0056D | 208 | 3 | 16 | 1/4 | 1725 | 12" | 25°F | 650 | 15" | 1 | 130 lbs | |
| GUX-233-FA-0056K | 240 | 3 | 14 | 5.0 | 1/4 | 1725 | 12" | 25°F | 650 | 15" | 1 | 130 lbs |
| GUX-233-FA-0056U | 480 | 3 | 7 | 1/4 | 1725 | 12" | 25°F | 650 | 15" | 1 | 130 lbs | |
| GUX-233-FA-0056Z | 600 | 3 | 6 | 1/4 | 1725 | 12" | 25°F | 650 | 15" | 1 | 130 lbs | |
| GUX-233-FA-0086C | 208 | 1 | 38 | 1/4 | 1725 | 12" | 28°F | 850 | 25" | 1 | 130 lbs | |
| GUX-233-FA-0086J | 240 | 1 | 34 | 1/4 | 1725 | 12" | 28°F | 850 | 25" | 1 | 130 lbs | |
| GUX-233-FA-0086D | 208 | 3 | 23 | 1/4 | 1725 | 12" | 28°F | 850 | 25" | 1 | 130 lbs | |
| GUX-233-FA-0086K | 240 | 3 | 20 | 7.5 | 1/4 | 1725 | 12" | 28°F | 850 | 25" | 1 | 130 lbs |
| GUX-233-FA-0086U | 480 | 3 | 10 | 1/4 | 1725 | 12" | 28°F | 850 | 25" | 1 | 130 lbs | |
| GUX-233-FA-0086Z | 600 | 3 | 9 | 1/4 | 1725 | 12" | 28°F | 850 | 25" | 1 | 130 lbs | |
| GUX-233-FA-0106J | 240 | 1 | 44 | 1/4 | 1725 | 12" | 38°F | 850 | 25" | 1 | 130 lbs | |
| GUX-233-FA-0106D | 208 | 3 | 30 | 1/4 | 1725 | 12" | 38°F | 850 | 25" | 1 | 130 lbs | |
| GUX-233-FA-0106K | 240 | 3 | 26 | 10 | 1/4 | 1725 | 12" | 38°F | 850 | 25" | 1 | 130 lbs |
| GUX-233-FA-0106U | 480 | 3 | 13 | 1/4 | 1725 | 12" | 38°F | 850 | 25" | 1 | 130 lbs | |
| GUX-233-FA-0106Z | 600 | 3 | 11 | 1/4 | 1725 | 12" | 38°F | 850 | 25" | 1 | 130 lbs | |
| GUX-233-FB-0156D | 208 | 3 | 44 | 1/4 | 1725 | 16" | 27°F | 1800 | 45" | 2 | 169 lbs | |
| GUX-233-FB-0156K | 240 | 3 | 38 | 1/4 | 1725 | 16" | 27°F | 1800 | 45" | 2 | 169 lbs | |
| GUX-233-FB-0156U | 480 | 3 | 19 | 15 | 1/4 | 1725 | 16" | 27°F | 1800 | 45" | 2 | 169 lbs |
| GUX-233-FB-0156Z | 600 | 3 | 16 | 1/4 | 1725 | 16" | 27°F | 1800 | 45" | 2 | 169 lbs | |
| GUX-233-FB-0206U | 480 | 3 | 25 | 1/4 | 1725 | 16" | 35°F | 1800 | 45" | 2 | 169 lbs | |
| GUX-233-FB-0206Z | 600 | 3 | 21 | 20 | 1/4 | 1725 | 16" | 35°F | 1800 | 45" | 2 | 169 lbs |
| GUX-233-FC-0256U | 480 | 3 | 31 | 1/2 | 1725 | 20" | 26°F | 3110 | 65" | 3 | 216 lbs | |
| GUX-233-FC-0256Z | 600 | 3 | 25 | 25 | 1/2 | 1725 | 20" | 26°F | 3110 | 65" | 3 | 216 lbs |
| GUX-233-FC-0306U | 480 | 3 | 37 | 1/2 | 1725 | 20" | 25°F | 3850 | 75" | 3 | 216 lbs | |
| GUX-233-FC-0306Z | 600 | 3 | 30 | 30 | 1/2 | 1725 | 20" | 25°F | 3850 | 75" | 3 | 216 lbs |
| GUX-233-FC-0356U | 480 | 3 | 43 | 1/2 | 1725 | 20" | 29°F | 3850 | 75" | 3 | 216 lbs | |
| GUX-233-FC-0356Z | 600 | 3 | 35 | 35 | 1/2 | 1725 | 20" | 29°F | 3850 | 75" | 3 | 216 lbs |
SKU Legend: Popular Products, Extended Offering Made to Order (Contact your local Marley Sales Representative for typically associated lead times)
*Total Amps = Heating element and motor amps. **Approximate air temperature rise
50 Hz Models & Specifications:
| ITEM INFORMATION | ELECTRICAL DATA | MOTOR | AIR FLOW | FRAME SIZE | SHIP WT. | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| CATALOG NO. | VOLTS | PHASE | TOTAL AMPS | KW | HP | RPM | FAN BLADE DIAMETER | RISE** | CFM | THROW | ||
| GUX-233-FA-0036E | 220 | 1 | 14 | 1/4 | 1438 | 12" | 14°F | 550 | 13" | 1 | 130 lbs | |
| GUX-233-FA-0036F | 220 | 3 | 9 | 1/4 | 1438 | 12" | 14°F | 550 | 13" | 1 | 130 lbs | |
| GUX-233-FA-0036G | 380 | 3 | 6 | 2.5 | 1/4 | 1438 | 12" | 14°F | 550 | 13" | 1 | 130 lbs |
| GUX-233-FA-0036H | 400 | 3 | 6 | 1/4 | 1438 | 12" | 14°F | 550 | 13" | 1 | 130 lbs | |
| GUX-233-FA-0036I | 415 | 3 | 5 | 1/4 | 1438 | 12" | 14°F | 550 | 13" | 1 | 130 lbs | |
| GUX-233-FA-0056E | 220 | 1 | 21 | 1/4 | 1438 | 12" | 24°F | 550 | 13" | 1 | 130 lbs | |
| GUX-233-FA-0056F | 220 | 3 | 13 | 1/4 | 1438 | 12" | 24°F | 550 | 13" | 1 | 130 lbs | |
| GUX-233-FA-0056G | 380 | 3 | 9 | 4.2 | 1/4 | 1438 | 12" | 24°F | 550 | 13" | 1 | 130 lbs |
| GUX-233-FA-0056H | 400 | 3 | 8 | 1/4 | 1438 | 12" | 24°F | 550 | 13" | 1 | 130 lbs | |
| GUX-233-FA-0056I | 415 | 3 | 7 | 1/4 | 1438 | 12" | 24°F | 550 | 13" | 1 | 130 lbs | |
| GUX-233-FA-0076E | 220 | 1 | 31 | 1/4 | 1438 | 12" | 28°F | 700 | 22" | 1 | 130 lbs | |
| GUX-233-FA-0076F | 220 | 3 | 19 | 1/4 | 1438 | 12" | 28°F | 700 | 22" | 1 | 130 lbs | |
| GUX-233-FA-0076G | 380 | 3 | 12 | 6.3 | 1/4 | 1438 | 12" | 28°F | 700 | 22" | 1 | 130 lbs |
| GUX-233-FA-0076H | 400 | 3 | 11 | 1/4 | 1438 | 12" | 28°F | 700 | 22" | 1 | 130 lbs | |
| GUX-233-FA-0076I | 415 | 3 | 10 | 1/4 | 1438 | 12" | 28°F | 700 | 22" | 1 | 130 lbs | |
| GUX-233-FA-0096E | 220 | 1 | 40 | 1/4 | 1438 | 12" | 38°F | 700 | 22" | 1 | 130 lbs | |
| GUX-233-FA-0096F | 220 | 3 | 24 | 1/4 | 1438 | 12" | 38°F | 700 | 22" | 1 | 130 lbs | |
| GUX-233-FA-0096G | 380 | 3 | 15 | 8.4 | 1/4 | 1438 | 12" | 38°F | 700 | 22" | 1 | 130 lbs |
| GUX-233-FA-0096H | 400 | 3 | 13 | 1/4 | 1438 | 12" | 38°F | 700 | 22" | 1 | 130 lbs | |
| GUX-233-FA-0096I | 415 | 3 | 13 | 1/4 | 1438 | 12" | 38°F | 700 | 22" | 1 | 130 lbs | |
| GUX-233-FB-0136F | 220 | 3 | 35 | 1/4 | 1438 | 16" | 26°F | 1500 | 39" | 2 | 169 lbs | |
| GUX-233-FB-0136G | 380 | 3 | 21 | 12.5 | 1/4 | 1438 | 16" | 26°F | 1500 | 39" | 2 | 169 lbs |
| GUX-233-FB-0136H | 400 | 3 | 19 | 1/4 | 1438 | 16" | 26°F | 1500 | 39" | 2 | 169 lbs | |
| GUX-233-FB-0136I | 415 | 3 | 18 | 1/4 | 1438 | 16" | 26°F | 1500 | 39" | 2 | 169 lbs | |
| GUX-233-FB-0176F | 220 | 3 | 46 | 1/4 | 1438 | 16" | 35°F | 1500 | 39" | 2 | 169 lbs | |
| GUX-233-FB-0176G | 380 | 3 | 28 | 16.7 | 1/4 | 1438 | 16" | 35°F | 1500 | 39" | 2 | 169 lbs |
| GUX-233-FB-0176H | 400 | 3 | 25 | 1/4 | 1438 | 16" | 35°F | 1500 | 39" | 2 | 169 lbs | |
| GUX-233-FB-0176I | 415 | 3 | 24 | 1/4 | 1438 | 16" | 35°F | 1500 | 39" | 2 | 169 lbs | |
| GUX-233-FC-0216G | 380 | 3 | 33 | 1/2 | 1438 | 20" | 26°F | 2600 | 57" | 3 | 216 lbs | |
| GUX-233-FC-0216H | 400 | 3 | 32 | 21 | 1/2 | 1438 | 20" | 26°F | 2600 | 57" | 3 | 216 lbs |
| GUX-233-FC-0216I | 415 | 3 | 31 | 1/2 | 1438 | 20" | 26°F | 2600 | 57" | 3 | 216 lbs | |
| GUX-233-FC-0256G | 380 | 3 | 39 | 1/2 | 1438 | 20" | 30°F | 2600 | 57" | 3 | 216 lbs | |
| GUX-233-FC-0256H | 400 | 3 | 37 | 25 | 1/2 | 1438 | 20" | 30°F | 2600 | 57" | 3 | 216 lbs |
| GUX-233-FC-0256I | 415 | 3 | 36 | 1/2 | 1438 | 20" | 30°F | 2600 | 57" | 3 | 216 lbs | |
SKU Legend: Popular Products, Extended Offering Made to Order (Contact your local Marley Sales Representative for typically associated lead times)
Factory Built-in Options:
| CATALOG NO. | OPTION | DESCRIPTION |
|---|---|---|
| D | Disconnect Switch | Factory installed on the unit heater above the control enclosure. This is an inexpensive and positive way to meet NEC/CEC requirements for a disconnecting means within sight of the heater. |
| E | Group E (Metal Dust) Construction | Class II, Group E (Metal Dust) Construction Temperature Code T3C, 320° F (160°C). |
| K | "Warning" Pilot Light | Indicates when the thermal cutouts have tripped and the unit heater needs servicing. Not available with combination V & L. |
| L | "Heater On" Pilot Light | Indicates when the electric heating elements are energized. Not available with combination V & K. |
| M | Manual Reset Thermal Cutout with Backup Contactor | A pilot duty manual reset thermal cutout with a backup contactor is provided for independent secondary overtemperature protection. Cannot be installed with S, S1 or V. |
| S | Auto/Fan Selector Switch | A two-position switch wired to the control circuit for auto (automatic heat) and fan only control. Cannot be installed with M, V or S1. |
| S1 | Built-In Controls for Remote Auto/Fan Selector Switch | Unit is prewired for field addition of remote auto/fan selector switch. Cannot be installed with M, V or S. |
| T | Adjustable Thermostat | Factory installed and prewired to the control enclosure. Thermostat is adjustable from 50° to 90° F (10° to 32°C). |
| T1 | Adjustable Thermostat for Wet Locations | Factory installed and prewired to the control enclosure. Thermostat is adjustable from 40° to 80° F (5° to 25°C). Can be specified for all constructions. |
| V | 120 Volt Control Circuit | Can be provided when required for special external thermostat circuit. Cannot be installed with S, S1, M or the combination of both K & L together. |
SKU Legend: Popular Products, Extended Offering Made to Order (Contact your local Marley Sales Representative for typically associated lead times)
Note: Both pilot lights (K & L) are not available with 120V option (V). Only one pilot light can be ordered with 120V control heaters.
Standard Mounting Kits:
| CATALOG NO. | DESCRIPTION |
|---|---|
| 1022451 | Ceiling Mounting Kit |
| 1022454 | Wall Mounting Kit |
| 1022457 | Pole Mounting Kit |
Note: One kit required per heater. Work with all frame sizes
Accessory Remote Thermostats:
| CATALOG NO. | SWITCH TYPE | TYPE | RATING | TEMP RANGE | DESCRIPTION |
|---|---|---|---|---|---|
| 1007002 | Bimetal | SPDT | 125-277V, 22A | 50°-90°F (10°-32°C) | Class I, Div. 1, Groups C & D. Class II, Div. 1, Groups E, F, & G |
| QX-1024754 | Bulb and Capillary with Internal Set Point Adjustment | SPDT | 120-240V, 25A 277V, 22A | 40°-120°F (5°-49°C) | Class I, Div. 1, Groups C & D. Class II, Div. 1, Groups E, F, & G |
| QX-1025396 | Bulb and Capillary with Internal Set Point Adjustment | SPST | 120-240V, 25A 277V, 22A | 40°-120°F (5°-49°C) | Class I, Div. 1, Groups C & D. Class II, Div. 1, Groups E, F, & G. Class III. IP66, Type 4 |
| 1036506 | Bimetal | SPDT | 480V, 15A | 40°-80°F (5°-25°C) | Class I, Div. 1, Groups C & D. Class II, Div. 1, Groups E, F, & G. Class III. NEMA 4X |
Remote Fan Switch:
| CATALOG NO. | SWITCH TYPE | RATING | HUBS | DESCRIPTION |
|---|---|---|---|---|
| 1001744 | 2-Position | 120/277V, 30A | (2) 3/4" NPT Hubs | Class I, Div. 1, Groups C & D. Class II, Div. 1, Groups E, F, & G. Class III |
| 1031042 | 2-Position | 110V, 6A | (2) 3/4" NPT Hubs | Corrosion-Resistant Class I, Div. 1, Groups B, C, & D. Class II, Div. 1, Groups E, F & G. Class III |
Dimensions and Clearances:
Scan the QR code to access additional specs and features.
| SIZE | X | Y | Z | MH | MW |
|---|---|---|---|---|---|
| 1 | 22 1/2" | 19 3/8" | 16 1/16" | 11 1/16" | 9" |
| 2 | 22 1/2" | 23 3/8" | 20 3/16" | 15 1/16" | 7" |
| 3 | 22 3/4" | 27 3/8" | 24 3/16" | 19 1/16" | 5" |
For technical services, contact 800-642-4328 or visit QMarkMEP.com.
QMark Archives - Marley Engineered Products
