12
Marvair GAA A/C w/Gas Heat I&O Manual
06/2023 Rev.5
2.3.1 – Programming Menu Configuration
1. To Enter Programming Mode:
• Press and hold the
Menu
button for 5 seconds until
P-01
is displayed.
2. While in Programming Mode main menu:
• Press the
Menu
button to enter the displayed parameter menu.
• Press the Up/Down buttons to adjust the current parameter number.
• The current parameter number will be displayed seven segments alternating showing "
P-
"
and the number every 0.5s.
3. While in parameter menu:
• The current parameter selection will be displayed seven segments.
• Press the
Menu
button to save the current parameter selection return to the programming
main menu.
• Press the Up/Down buttons to adjust the current parameter selection.
4. To exit programming mode, press and hold the
Mode
and
Up
buttons while in the programming
main menu.
• Press and hold the
Menu
button for 5 seconds.
• Note:
The control will automatically exit the programming mode after 2 minutes with no
activity.
Note:
100 will be displayed by alternating between "
1
" and "
00
" every 0.5s.
Configuration Menu
Menu
Setting Name
Default
Selections General Description
1
AC/HP Select
AC
AC, HP
HP = Heat Pump Unit, AC = AC Unit
2
IBM Select
P
P, dC
P = PWM, dC = 0-10V
3
FAN PURGE
90
N, 10-90
Indoor Blower off delay in seconds
4
IBM Y1 Set
80
40-100
“G” Fan only and “Y1” 1st Stage Cooling Indoor Blower
Speed Setting
5
IBM Y2 Set
100
40-100
“Y2” 2nd Stage Cooling Indoor Blower Speed Setting
6
OFM Select
P
P, dC
P = PWM, dC = 0-10V
7
OFM Set
80
65-100
Outdoor Fan Motor Max Speed setting
8
Defrost Timer
30
30, 60, 90
Defrost cycle timer in minutes
9
EHDD select
Y
Y, n
CAN ONLY BE "Y" IF SCKT IS "N"
10
SCKT select
n
Y, n
SCKT= Y OVERRIDES EHDD
11
ODS set
50
0-70
Outdoor Sensor for HP or Econo. Dry Bulb Setpoint
12
ECONO select
n
Y, n
n = Disabled (No Econo.), Y = Enabled (W/Econo.)
13
Sensor Type
EN
EN or DB
Economizer sensor type selection EN= Enthalpy, DB = Dry Bulb
14
ECONO set
d
A-E
Selections A=73F, B=70F, C= 67F, D =63F E= 55F all @
50%RH (Only available if EN sensor type is se-lected)
15
MIN POS
20
20-100
Sets the damper position for Minimum Open
16
W2 speed
100
70-100
Sets the Indoor Blower Speed for Electric Heat
17
Dehum speed
80
60-100
Sets the Indoor Blower Speed for Dehumidification
18
DS calibration
0
-18
Defrost Sensor Calibration
19
SAS calibration
0
-18
Supply Air Sensor Calibration
20
T'STAT Select
H
H, C
H = hardwired 24V Tstat, C = communicating Tstat
21
Modbus ID
1
36161
Sets the Modbus ID for the unit
22
Modbus BAUD rate
19
9.6, 19
Available Baud Rates 9.6 = 9600, 19 = 19200
23
Modbus timeout
25
21916
Communications Timeout in minutes
24
Test
n
Y, n
When set to “Y” all timers are reduced for testing
25
SW version number N/A
N/A
Displays the current version software
