Qmark MUH204 User Manual

MUH Series
Modular Unit Heaters
Installation, Operation & Maintenance Instructions
ECR 40559 07/15 5200-11106-001
Specifications
Mounting Wiring
B
asic Model Height Width Depth Weight Compartment
No. in (mm) in. (mm) in. (mm) lbs. (kg) Volume
MUH0381 27 (12.2)
M
UH0321 27 (12.2)
MUH0371 27 (12.2)
MUH0341 30 (13.6)
MUH0581 27 (12.2)
MUH0521
16 14 7
1
/
2
27 (12.2)
90 in
3
MUH0571
(406.4) (355.6) (190.5)
27 (12.2)
(14.70 cm
3
)
MUH0541 30 (13.6)
MUH0331 30 (13.6)
MUH0361 30 (13.6)
MUH0531 30 (13.6)
MUH0561 30 (13.6)
MUH078 38 (17.2)
MUH072 38 (17.2)
MUH077 38 (17.2)
MUH074 38 (17.2)
MUH108
21
3
/
4
19 7
1
/
2
38 (17.2) 100 in
3
MUH102
(552.5) (482.6) (190.5)
38 (17.2)
(1639 cm
3
)
MUH107 38 (17.2)
MUH104 38 (17.2)
MUH073 38 (17.2)
MUH076 38 (17.2)
MUH103 38 (17.2)
MUH106 38 (17.2)
M
ounting Wiring
Basic Model Height Width Depth Weight Compartment
No. in (mm) in. (mm) in. (mm) lbs. (kg) Volume
MUH158 54 (24.5)
MUH152 50 (22.7)
MUH154 50 (22.7)
MUH208
21
3
/
4
19 12
3
/
4
60 (27.2)
140 in
3
MUH202
(552.5) (482.6) (323.9)
55 (24.9)
(2295 cm
3
)
MUH204 55 (24.9)
MUH156 55 (24.9)
MUH206 55 (24.9)
MUH252 89 (40.4)
MUH254 89 (40.4)
MUH308
30 26
5
/
8
11
3
/
4
89 (40.4)
504 in
3
MUH302
(76.2) 676.4) (298.5)
89 (40.4)
(8260 cm
3
)
MUH304 89 (40.4)
MUH256 89 (40.4)
MUH306 89 (40.4)
MUH402 119 (54.0)
MUH404 119 (54.0)
MUH508
30 26
5
/
8
17
1
/
4
119 (54.0)
648 in
3
MUH502
(76.2) 676.4) (435.1)
119 (54.0)
(10620 cm
3
)
MUH504 119 (54.0)
MUH406 119 (54.0)
MUH506 119 (54.0)

Qmark MUH204 Specifications

General

Brand	Qmark
Model	MUH204
Category	Heater
Language	English

Summary

Important Safety Instructions

General Safety Precautions

Essential safety guidelines to reduce risk of fire, electric shock, and injury.

Save These Instructions

Keep this manual for future reference.

Installation Instructions

Installation Warnings and Precautions

Critical steps to prevent fire, injury, or damage during installation.

Heater Location Guidelines

Recommendations for optimal placement and air stream direction for safe operation.

Heater Mounting and Wiring

Mounting Procedures

Instructions for mounting the heater horizontally or vertically using threaded rods.

Branch Circuit Wiring

Guidance on connecting the heater to the power supply according to codes.

Wiring Details

Screw Lug Torque and Phase Wiring

Details on checking screw lug tightness and wiring connections for single/three-phase power.

Control Wiring and Operation

Control Wiring Safety and Diagrams

Safety warnings for control wiring and references to wiring diagrams for different models.

Heater Operating Instructions

Steps to follow for proper heater operation after installation.

Safety Controls and Cleaning

Over-Temperature Safety Control Reset

Procedure for resetting the internal manual limit switch for over-temperature protection.

User and Maintenance Cleaning

Guidelines for users and qualified personnel on cleaning the heater.

MUH Heater Components and Parts

Built-in Controls Identification

Identification of built-in control components and their part numbers.

Heater Replacement Parts List

Comprehensive list of replacement parts with their corresponding key numbers and part numbers.

Maintenance and Warranty

Professional Maintenance Cleaning

Instructions for qualified personnel on annual heater cleaning and servicing.

Warranty and Service Information

Details on the product warranty, claims, and how to obtain service or parts.