Equipment Interface Module (for single and multistage heat pump)
Overview
W8635A,W8635B Equipment Interface Module provides 24 Vac control of single- or multi-stage HVAC equipment when used with a T8635L Microelectronic Communicating Thermostat. The W8635A works with up to 2 heat/2 cool conventional applications. The W8635B works with up to 2 heat/1 cool heat pump applications.
Features
W8635A controls conventional gas, oil or electric heat systems.
W8635B controls single-stage or multi-stage heat pumps.
Uses Honeywell EnviraCom
• communications protocol
Product Specifications
Application Controls single-stage or multi-stage heat pumps
Network Zoning Yes
Number of Zones Single- or Multi-Zone
Heat Pump Compatible Yes
Compatible with Discharge Air Temperature Yes
Color Gray
Individual Zone Fan Control Yes
Terminal Designations 1, 2, 3, C, R, Rh, L, G, W1,Y1, Aux, E, O, B
Dimensions (in.) 4 3/4 in. high x 4 3/16 in. wide x 1 1/4 in. deep
Dimensions (mm) 121 mm high x 107 mm wide x 32 mm deep
Mounting No. 6 screw and wall anchors supplied in bag assembly
Operating Humidity Range (% RH) 5 to 90% RH, non-condensing
Stages Up to 2 Heat/1Cool
LEDs Yes
Electrical Ratings 20 to 30 Vac
Frequency 60 Hz;50 Hz
Switch Positions (System) HEAT-OFF-COOL-AUTO-EM. HT.
Ambient Temperature Range (F) -40 F to +150 F
Ambient Temperature Range (C) -40 C to +66 C
Replaces Part Numbers: CARW8635B1004