QMark Catalog 2024-2025

MUH SERIES Unit Heater

UNIT HEATERS MARLEY CUSTOM CAPABILITIES

Optional Accessories:

3–20 kW 25–50 kW

A 7 1/4 " B 9 1/2 " C 7 1/4 " D 11 5/16 " E 2 1/4 " L 20 1/2 " M 9 15/16 " N 3 1/4 "

9 7/16 " 14 3/8 " 12 1/8 "

2 1/16 "

3"

28 15/16 " 14 15/16 "

4 1/2 "

Optional Mounting Brackets:

Optional Field-Installed Electrical Controls:

CATALOG NO. UPC

COMPATIBILITY SHIP WT.*

CATALOG NO. UPC

DESCRIPTION

ELECTRICAL RATING

U

8 lbs

B10

685360152295

MUH03–10

Single Pole Internal Thermostat Temp Range: 40°- 85°F Two Stage Internal Thermostat Temp. Range: 40°- 85°F

25A @ 120, 240VAC Res. 22A @ 277VAC Res. 25A @ 120, 240VAC Res. 22A @ 277VAC Res. 125VA

UHMT1

685360152417

MCB105PK 685360173627

(Master Pack, Five B10 Brackets)

MUH PRO SERIES UNIT HEATER 685360152424

10 lbs

UHMT2

B20

685360152301

MUH15 & 20

13 lbs

B30

685360152318

MUH25 & 30

Internal Summer Fan Switch 250, 480, 600V.A.C. 1,2 OR 3 PH

Pilot Duty 6A, 600VAC Res. 2 HP

Standard

MCFS

685360046372

15 lbs

B50

685360152325

MUH40 & 50

Remote Summer Fan Switch (Line Voltage) Remote Summer Fan Switch with Relay (24V Coil-Single Pole Normally Open) Heat Recovery Thermostat with Relay (24V Coil-Single Pole Normally Open) Hi - 120°F, Low - 60°F

MRFS1

685360047089

2 HP, 250-480VAC

3 lbs

CMB10

685360152363

MUH03–10

4 lbs

CMB20

685360152370

MUH15 & 20

6 AFL, 35 ALR, 250VAC, 60Hz. 3 AFL, 18 ALR, 480VAC, 60Hz 6 AFL, 35 ALR, 250VAC, 60Hz 3 AFL, 18 ALR, 480VAC, 60Hz

MRFS2

685360047096

5 lbs

CMB30

685360152387

MUH25 & 30

Ceiling

6 lbs

CMB50

685360152394

MUH40 &50

MHRT

685360046945

5 lbs

VDMB5

685360152455

MUH03–05

7 lbs

VDMB20

685360152462

MUH07–20

Power Disconnect Switch (3-Pole) Power Disconnect Switch (3-Pole)

MPDS25

685360047034

30A @ 600VAC, Res.

9 lbs

VDMB50

685360152479

MUH25–50

Ceiling

Vertical

MOUNTING LIMITATIONS: Unit heaters should not be used in potentially explosive atmospheres. The finish is not intended for direct salt spray exposure in marine applications or the highly corrosive atmospheres of swimming pools, chemical storage bins, etc. Do not install unit heaters above recommended maximum mounting height. Obstructions must not block unit heater air inlet or discharge. Heaters must be mounted at least 7 ft. above the floor to prevent accidental contact with the heating element or fan blade which could cause injury. Optional Dust Shields:

MPDS60

685360047041

80A @ 600VAC, Res.

Introducing the MUH PRO series Unit Heat on everyday but now with added safety an series comes standard with: n A disconnect switch to make maintenan n A 24VAC transformer for safer control as a low voltage digital thermostat is desire n A built in single stage thermostat which the box. n PRO-SSP Models come with the Smart mounted, to give you BMS communicat touchscreen, 7 day schedule, temporary cooling mode to run only the fan. Benefits of the MUH PRO: n Safety : The integrated disconnect switc add additional safety to the base MUH l switch gives peace of mind to the maint disconnect switch will cutoff incoming p easily repaired. The low voltage transfor work with line voltage control for easy a n Better Lead Times : The MUH PRO ser product so they will have the same lead models we have today meaning no long n Better Pricing : Enjoy the benefits of the without the full cost of a similar configur n Easy Setup : All of the accessories are in the product reaches your door it just ne built in thermostat and you are good to n Easily Stocked : With all the features an easy to keep on the shelves of distributo right when you need it.

IDEAL SPACES § Factories § Warehouses § Garages § Stairwells NOTE: Any field installed options assembled in the factory require added surcharge. See price book for charges. MPDS60 disconnect switch is not suitable for field installation on 7.5kw and 10kw unit heaters. Visit website or contact your local representative for compatibility details. Diffusers for Vertical Mounting: No Diffuser: § Shipping Docks § Power Stations § Mechanical Rooms

CATALOG NO.

UPC

COMPATIBILITY SHIP WT.*

COLORS § Neutral Gray/Statuary Bronze DIMENSIONS § Varies (see diagram) TEMP RANGE § 40°– 90°F CFM § 350 – 650 No diffuser needed where a straight downflow air pattern is required. For maximum air throw, remove louvers. Any of three diffusers can be added to basic heater. Louver Diffuser: Permits directional (straight line) air flow as in air curtain application over doorways. Rectangular coverage, Louvers can be turned in either direction. NOTE: Visit website or contact your local representative for additional details

5 lbs

JRDS8

685360150697

3–5 KW units

6 lbs

JRDS14

685360150673

15–20 KW units

10 lbs

JRDS19

685360150680 25–50 KW units

Optional Factory-Installed Controls & Accessories:

DESCRIPTION

MUH03 & 05 (208, 208/240, 277V Supply) 24 or 120V Control Transformer and Power Contactor 24 or 120V H.C. Power Contactor

MUH03 & 05 (480V Supply) & MUH07 through MUH50 Optional 120V Control

2-Stage Control of Elements

Now compatible with SmartSeries Plus when used with 24VAC control transformer! Now compatible with SmartSeri s Plus when used with 24VAC control transformer!

Manual Reset

Outlet Mesh (Bird Screen) For all HUHAA Heaters

NOTE: Any factory-installed options require added surcharge. See price book for charges or contact factory.

Suggested Controls

5

1 Y E A R WARRANTY WORKMANSHIP

Y E A R WARRANTY

E L E M E N T

122 | Unit Heaters

For more information visit MarleyMEP.com/Products/Unit-Garage-Heaters

rev: Jul 2022