Install Instructions

30
Tech.Doc - 03/21 - Subject to change. © Belimo Aircontrols (USA), Inc.
ZIP Economizer
Menu Structure Tables
Menu Item Parameter Default Range Notes
High Limit
Modification
High Limit
Dry Bulb
ZIP Code
Dependent
50...80°F
10...27°C
If the High Limit Change Over Setpoint that was determined by the ZIP Code setup
is deemed to be not desirable for the application, then it can be modified here.
With Differential Enthalpy, temperature can also be changed; offsets cannot. Note:
a modification may result in less energy savings and non compliance with local
energy code.
High Limit
Fixed Enthalpy
5
28 BTU/lb
47 kJ/kg
25...28 BTU/lb
40...52 kJ/kg
ZIP Code
Dependent
50...80°F
10...27°C
High Limit
Diff Enthalpy
30 BTU/lb
52 kJ/kg
25...30 BTU/lb
40...52 kJ/kg
ZIP Code
Dependent
50...80°F
10...27°C
SAT Y2 Limit
SAT Y2 Limit
On
On, Off
SAT Y2 Limit is an energy saving function that prevents 2nd stage to get engaged
when the Supply Air Temperature is at 56.5°F or below. When "On" there will be 4
min delay from the time Y2 is on until the 2nd stage compressor will be enabled
allowing 1st stage to try to satisfy SAT requirement. When “off”, 2nd stage is not
limited and compressor delay is 10 seconds. This function saves energy by having
one stage of cooling satisfy space cooling requirements.
LCLO Limit
LCLO Limit
50°F
40...65°F
4...18°C
If the LCLO Limit of 50°F is deemed not to be desirable for the application, then it
can be modified here.
SAT Setpoint
9
SAT Setpoint
55°F
45...70°F
7...21°C
There is where the desired SAT can be set. The damper will modulate in Free
Cooling to maintain this temperature. The default 55°F can be changed by the
operator within the range of 45...70°F.
Com
Interface
10
BACnet Active
MP Active
MP Active
BACnet Active,
MP Active
Allows for Com Selection to be configured to MP Active or BACnet Active. If MP
Active is chosen, then "Device Name" and "Location" will appear.
If "BACnet Active" is selected, then Baudrate (115200, 76800, 57600, 38400,
19200, 9600), BACnet Device ID (xxxxxxx), MS/TP Address (xxx) will also appear
and need to be configured.
1. Required setting for Economizer operation. If the value is not set, outputs of the economizer such as compressors will not operate regardless of thermostat call.
2. Attached Devices will be automatically detected and the related functionality will be enabled. When devices are detected, they will appear in the Present Devices menu and the Setup Settings
menu will also automatically configure to display parameter to setup. For example, when an Exhaust Fan (EF) is detected, the "Exh Fan On Pos" will show in the menu and will require setup.
3. At least 1 compressor is required (auto detected or chosen) for economizer to function.
4. Requires the Energy Module connected and the accessory component powered, wired, and terminated to the Energy Module.
5. Only visible when Humidity Sensor is present.
6. Requires the Energy Module connected, 2 speed fan installed, and the accessory component or device powered, wired, and terminated to the Energy Module. 2 Speed Fan can be enabled in
settings menu.
7. Not visible when differential dry bulb or differential enthalpy change over strategies are used.
8. Only present at initial setup.
9. Setpoint can be changed for Free Cooling Mode only.
10. Requires the Communication Module connected and the accessory component powered, wired, and terminated to the Communication module.