1-866-494-4610

Robertshaw 2703-001 SlimZone Environmental Module (SZEM)

Robertshaw 2703-001 SlimZone Environmental Module (SZEM)
Images for general purposes only. Actual may be different than depicted.
Robertshaw 2703-001 SlimZone Environmental Module (SZEM)

Robertshaw 2703-001 SlimZone Environmental Module (SZEM)

SKU: 2703-001
Rating:
* This Product is Now Obsolete
No Replacement Available
0
0
0
0
0
2703-001
The Slimzone Environmental Module (SZEM) is an optional component in the Slimzone Premier system. The module provides the following services:
  • Bypass Damper control and static pressure sensing
  • High/Low temperature limit signaling
  • Outdoor temperature measurement
All information collected by the SZEM module is communicated to the Slimzone Premier control module (SZP) via a RS485 communication port at 1200 baud, 8 bits, no parity, with standard protocol. All information received by the SZP control module may be viewed by the user.

In order to maintain proper air flow and static pressure throughout the HVAC system, a bypass system should be used. In some two zone applications a bypass damper may not be required. This is based on duct sizing where either zone is able to handle approximately 75% of the total system CFM (cubic feet/minute). This will result in only slightly higher air velocity at the discharge grille if only one zone is calling and yet allow for proper CFM across the cooling coil. Bypass activities are fully controlled by the SZEM module, which monitors the system static pressure and modulates a motorized bypass damper accordingly. The static pressure value is communicated to the SZP control module.

When bypassing conditioned air it is important to consider high and low limit control to prevent coil freeze up or overheating. The SZEM module also monitors the conditioned air temperature and signals the SZP control module when the high and low limits are exceeded. System air temperature value is communicated to the SZP control module.

In heat pump applications, the outdoor temperature may be used to determine when to lock out either the compressor(s) or auxiliary heat (high and low balance points). Outdoor air temperature is communicated to the SZP control module; outdoor temperature value may be displayed at both the SZP module and zone thermostats.

Q & A: Ask the Questions, share answers

Do you have questions about this product?