Description
The Honeywell W7100C1018 is a microprocessor-based discharge air controller that maintains an average discharge air temperature in variable air volume (VAV) cooling systems by modulating an economizer and sequencing stages of mechanical cooling. It is listed as a 2-heat / 4-cool configuration operating on 20 to 30 V.
The controller reduces kilowatt demand and consumption by holding only the minimum heating or cooling capacity needed to maintain the discharge air setpoint. Advanced control algorithms minimise droop, and the reset signal can be taken from either a space sensor or an outdoor air sensor.
On a power interruption the system cycles all stages off. When power is restored the economizer is modulated open first if enthalpy is suitable, then stages of mechanical cooling are sequenced on; if enthalpy is unsuitable, the first stage of cooling or heating is energised within five minutes.
* Brand / Manufacturer: Honeywell
* Model Number: W7100C1018
* Series: W7100 Discharge Air Controllers
* Staging: 2 heat / 4 cool
* Supply Voltage: 20 to 30 V
* Power Consumption: 12 VA at 24 Vac, 50 to 60 Hz
* Switching: SPDT relays for on/off stages
* Wiring Terminals: 1/4 in. (6 mm) quick-connect
* Adjustable Control Band: 2 to 16°F
* Discharge Air Setpoint: Adjustable 40 to 90°F
* Reset Signal Source: Space sensor or outdoor air sensor
* Staging Expansion: Capacity can be extended six stages using a W7101A Satellite Sequencer
* Approvals: UL Component Recognized (guide SDFY2, file SA481); CSA Certified
Typical applications include VAV cooling systems, electric make-up air units and multistage heating or cooling systems requiring discharge air control.
Obsolete - replacement available. Honeywell's own application guide and cross-reference documents the T775L as the replacement for the W7100C Discharge Air Controller. This unit is offered as surplus stock for like-for-like replacement where retaining the existing wiring and control strategy is preferred.. Honeywell. Honeywell. W7100C1018.
Warranty Information
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