Product Overview:
  • The W8735D Telephone Access Module (TAM) provides remote telephone access to the HVAC system when used with an EnviraCOM enabled thermostat such as the TH9421C1004 VisionPRO® IAQ Total Home Comfort System and the TH5320C1002 FocusPRO® thermostat. These thermostats are used with one or more of the following controls: A W8835A EnviraZone panel, a THM5421C1008 or W8703 Damper Interface Module. The W8735D also communicates with R7184P and R7184U oil primary controls and L7224U Aquastat® remote temperature sensors as well as any other EnviraCOM enabled controls to communicate current status and alert information.

Product Features:
  • Supports up to four independent EnviraCOM channels for a maximum of 36 zones per W8735D (9 zones per channel when using zone panels)
  • Use with the TH9421C1004 VisionPRO IAQ Total Home Comfort System and W8835A EnviraZone for zoned systems
  • Use with THM5421C1008 for single zone applications
  • Use with TH5320C1002 FocusPRO EnviraCOM thermostat for zoning applications
  • Compatible with the T8635L Microelectronic Communicating Programmable Thermostat, W8835A EnviraZone panel, or W8635A and W8635B Equipment Interface Modules
  • Use with any EnviraCOM generating products like R7184U Oil Primary and L7224U Aquastat controls
  • Provides remote telephone access to check or change thermostat settings (i.e. heat, cool, auto, or off)
  • Provides remote telephone access to check current indoor and outdoor temperatures and indoor humidity
  • Reports alert messages on high or low indoor/outdoor temperature, high or low humidity, low battery, auxiliary input sensor tripped, pass code change, air filter change required, system alerts, and power outage
  • Prioritize alerts to specify the time of day that the TAM will dial-out
  • Emergency drop call feature
  • Up to three telephone numbers can be programmed for alert messaging
  • Auxiliary sensor input for use with an optional N.C. sensor contact
  • Auxiliary output for local alert enunciation

Product Specifications:
  • Application: The W8735D Telephone Access Module (TAM) provides remote telephone access to the HVAC system when used with EnviraCOM enabled controls
  • Programmability: Up to 3 dialup numbers, alert prioritization, low/high temperature alert settings, low/high humidity alert settings, and zone naming
  • Network Zoning: Yes
  • Number of Zones: 9 zones per channel; 4 channels; 36 total zones
  • Power Method: Plug in transformer, 12 Vdc (+/- 5%), 2.0 A, 9 Vdc battery backup
  • Color: Premier White
  • Terminal Designations: 1/D, 2/R, 3/B (terminal connections per channel), Aux In, Aux Out
  • Dimensions (in.): 10 in. high x 5 in. wide x 2 in. deep
  • Dimensions (mm): 254 mm high x 127 mm wide x 51 mm deep
  • Mounting: Number 6 screw and wall anchors supplied in bag assembly
  • Operating Humidity Range (% RH): 5 to 95% RH, non-condensing
  • LEDs: Communication and Battery LEDs
  • Electrical Ratings: EnviraCOM Terminals: 1/D, 2/R, 3/B = 24 Vac; Auxiliary Terminals: Aux In = N.C.24 Vac/24 Vdc, polarity insensitive; Aux Out = N.O. dry contact, 24 Vac/24 Vdc
  • Communications: Standard RJ11 plug for analog telephone line; Compatible with most answering machines an voicemail
  • Ambient Temperature Range (F): 32 F to 120 F
  • Ambient Temperature Range (C): 0 C to 49 C
  • Approvals, Federal Communications Commission: FCC rules: Part 68 and Part 15
  • Used With: EnviraCOM enabled thermostats and combustion controls

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