The Model 600 Lead/Lag controller provides the best low-cost HVAC automation solution for your critical facility. Replace Old Antiquated or Obsolete Control Systems with an Intelligent Controller that Provides Remote Communication.
The 600 outperforms comparable devices through its rugged design, intuitive display/keypad, ease of set-up, and Quest’s patented economizer control algorithm.
This comprehensive HVAC Control System meets your needs by providing a comprehensive monitoring and control system for MULTIPLE HVAC units in your Telecom or Broadband facility. The Model 600 reduces costs and gives you the confidence that your critical facility is operating at peak performance. The Model 600 has the flexibility to handle wall packs, rooftops and split systems plus support for single, dual stage systems and heat pumps with unmatched dependability.
Features
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Can be configured to control most HVAC systems such as single stage, two stage or heat pump systems
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Designed to work with existing HVAC economizer control modules using Quest’s patented Economizer control algorithm
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Powered from both HVAC 24VAC transformers
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Additional 24 or 48VDC power source supported
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Networkable to the ESB2 or any Modbus RTU poller
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Works in standalone mode if communications are lost
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LCD display for current operating mode, alarms and temperature readings
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Five button keypad for navigation to other status screens plus Comfort Mode and Lead Switch button
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Bluetooth enabled to communicate with mobile app
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Default settings and configuration are settable through password protected screens
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All settings can be modified remotely via Modbus RTU
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Supports two zone temperature sensors, an outside air sensor, and an optional humidity sensor
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Calculates controlling temperature using either the average or high of the zone sensors
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Outside air sensor allows standalone, optimal economizer control
Connect several Model 600 HVAC controllers to the TELSEC ESB2 system.
Setpoints
The Model 600 setpoints are field changeable via password.
| Standalone mode - cool 1 on | 76 |
| Standalone mode - cool 2 on | 78 |
| Standalone mode - All cooling off | 74 |
| Standalone mode - heat 1 on | 55 |
| Standalone mode - heat 2 on | 53 |
| Standalone mode - All heating off | 60 |
| Standalone mode - fan operation | Auto |
| Network mode - cool 1 on | 78 |
| Network mode - cool 2 on | 80 |
| Network mode - All cooling off | 74 |
| Network mode - heat 1 on | 50 |
| Network mode - heat 2 on | 48 |
| Network mode - All heating off | 53 |
| Network mode - fan operation | On |
Applications
- Utilities/Telecommunication/Cable & Broadband – Remote Cabinets & Shelters
- Data/Switching/Computer Centers/COs/Headends & Hubs
Specifications
Support Documents
Model 100 & 101 Lead/Lag Controller
Model 200 & 201 Lead/Lag Controller
Model 400 HVAC Controller
