Qmark MUH Series - Safety Control Reset and Maintenance; Over-Temperature Safety Control Reset; Maintenance Safety Warnings

Table 4. Specifications
Mounting Wiring
Basic Model Height Width Depth Weight Compartment
No. in (mm) in. (mm) in. (mm) lbs. (kg) Volume
MUH0381 27 (12.2)
MUH0321 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)
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)
T
T
MT-1
MT-2
BLACK TO W1
RED TO R
2-STAGE
INTERNAL
THERMOSTAT
MHRT HEAT RECOVERY
THERMOSTAT OR
REMOTE FAN
SWITCH (MRFS-2)
BLACK
RED
RED
BLACK
C
RW1
W2
F 2
F 1
G
T R
T
S
S
REMOTE SUMMER FAN
SWITCH (MRFS-1)
FAN RELAY
(FOR MRFS-2 AMD MHRT)
SUMMER
FAN
SWITCH
Figure 5. Control Terminal Board (for Heaters With Contactors)
NOTES:
1. THIS STYLE CONTROL TERMINAL BOARD USED
WITH MODELS EXCEPT MUH0321, MUH0371,
MUH0381, MUH0521, MUH0571, AND MUH0581.
2. REMOVE JUMPER W1 TO W2 WHEN 2-STAGE THER-
MOSTAT IS USED.
3. *ONLY ONE OF THESE ACCESSORIES MAY BE
INSTALLED IN A SINGLE HEATER.
4. EXTERNAL LINE VOLTAGE THERMOSTATS SHOULD
BE TREATED AS SINGLE STAGE ONLY.
6