6
Marvair Wall Mount Heat Pump I&O Manual
11/2021 New
1.3 Model Identification
Example M A A 1 0 4 2 H A 0 5 0 C + + + + 1 C A + A 1 1 + + + + + +
Position
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
1
Unit Designation/Family
M
= Marvair Wall Mount
S
= Stock Unit
2
Energy Efficiency Ratio
(EER)
A
= 11
3
Refrigerant Type
A
= R-410a
4
Compressor Type/Quantity
1
= Single Stage Compressor
2
= 2-Stage Compressor
5
Unit Capacity/Nominal
Cooling (BTUH)
042
= 42,000
048
= 48,000
060
= 60,000
6
7
8
System Type
H
= Heat Pump
9
Power Supply
(Volts-Phase-Hz)
A
= 208/230-60-1
D
= 460-60-3
C
= 208/230-60-3
10
Heat Designation
@ Rated Voltage
000
= No Heat
090
= 9KW
040
= 4KW
100
= 10KW
050
= 5KW
120
= 12KW
060
= 6KW
150
= 15KW
080
= 8KW
11
12
13
Ventilation
Configuration
C
= Economizer
D
= Motorized Damper w/Pressure Relief
E
= Motorized Damper w/Pressure Relief &
Independent Motorized Damper Control
N
= Barometric Damper w/15% OSA
+
= None
$
= Special
14
Dehumidification
G
= Hot Gas Reheat
R
= Electric Reheat
T
= Electric Reheat w/Humidity Control
+
= None
$
= Special
15
Controls
A
= Power Fail Alarm w/Additional Lockouts
C
= 24V EMS Relay Kit
D
= 24V EMS Relay Kit w/Factory
Installed T-Stat
E
= Factory Installed T-Stat
+
= None
$
= Special
16
Operating Condition
A
= Evaporator Freeze Sensor (EFS)
C
= EFS w/Hot Gas Bypass
N
= Hard Start
P
= Hard Start w/Low Ambient & CCH
Q
= Hard Start w/Low Ambient &
Fan Cycle Control (FCC)
R
= Crank Case Heater (CCH)
T
= Hard Start w/EFS
U
= Hard Start w/Hot Gas Bypass
V
= Hard Start w/Low Ambient & CCH & EFS
W
= Low Ambient w/CCH
X
= Hot Gas Bypass
Y
= Low Ambient w/CCH & FCC
Z
= Low Ambient w/CCH & EFS
1
= Low Ambient w/FCC
2
= Low Ambient w/FCC & EFS
3
= CCH w/Hot Gas Bypass
+
= None
$
= Special
17
Indoor Air Quality Features
A
= UV Light
D
= Dry Bulb Sensor
E
= Dry Bulb Sensor w/Dirty Filter
G
= Dirty Filter Sensor
+
= None
$
= Special
18
Air Flow
1
= Top Supply/Bottom Return
$
= Special
19
Compressor Access
C
= Center/Front
20
Filter Option
A
= 2” Pleated (MERV 8, AC/HP-C)
C
= 2” Charcoal
D
= MERV 11 High Filtration Package
E
= MERV 13 High Filtration Package
F
= Filter Access Through Return Air Grille
W
= Aluminum Washable
+
= None
$
= Special
21
Corrosion Protection
A
= Condenser Coil Only
C
= Evaporator Coil Only
D
= Both Coils Condenser & Evaporator
E
= All Coils Cond/Evap/Reheat
F
= Coat All
G
= Coastal Package & Evaporator Coil
K
= Coastal Package
+
= None
$
= Special
22
Engineering Revision
Level
B1
23
24
Cabinet Color
1
= Marvair Beige
2
= Gray
3
= Carlsbad Canyon
4
= White
5
= Stainless Steel Exterior
6
= Dark Bronze
7
= .050 Aluminum Stucco
9
= Pebble Gray
A
= Stainless Steel - Unit
$
= Custom Color (Powder Coat)
25
Sound Attenuation
2
= Compressor Blanket
+
= None
26
Security Option
A
= Lockable Access Plate/Tamper Proof
C
= Tamper Proof Screws
D
= Lockable Access Plate w/Tamper Proof
+
= None
$
= Special
27
Fastener/Drain Pan Option
A
= Stainless Steel Fasteners
C
= Stainless Steel Drain Pan
D
= Stainless Steel Fasteners & Drain Pan
+
= None
$
= Special
28
Unused
+
= None
$
= Special
29
Unused
+
= None
$
= Special
30
Special Variation
+
= None
$
= Special Configuration Not Covered by
Model Nomenclature
Note: Not all options are available with all configurations. Contact
your Marvair sales representative for configuration details and feature
compatibility.
