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Air Purification ProductsPleated filters 40% 1 in.
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An excellent replacement for the PC8900 which is no longer available.  Click here¹ The TH9421U touch screen universal programmable thermostat provides electronic control of 24 Vac & of 750 mV heating and cooling systems in addition to humidification, dehumidification and ventilation. |
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Adding the CM8900A Communications Module and the W8735B Telephone Access Module gives the PC8900A/W8900A-C remote communications. Users can monitor the outdoor temperature, humidity, current setpoint, system mode, alarm out on High-Low temperature, filter status and equipment failure. See separate instructions on CM8900A and W8735B for more detailed information. |
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PC8900A  The PC8900 and all components are obsolete. Some items are still available. Call to check. | ||
| Model Number | Name | Price |
| PC8900A1007 | Control System Control Panel | no longer available |
| PC8900A1015 | Control System Control Panel Enviracaire Elite Perfect Climate Comfort Center same as PC8900A1007 except W/new keypad overlay. Keys are blue W/white lettering. |
no longer available |
Remote Module for conventional 24 Vac systems Mounts near equip. ¹
All htg, clg, vent, humid & all sensors & PC8900 wire to W8900 | ||
| W8900A1004 | up to 2 heat/ 2 cool | no longer available |
| W8900A1020 | up to 2 heat/ 2 cool same as W8900A1004 except enviracom blue cover and case |
no longer available |
| W8900A1012 | With O/B terminals for ht/cl changeover valves | $179.84 |
| W8900A1015 | same as W8900A1004 except enviracom blue cover and case. | no longer available |
| W8900A1038 | similar to W8900A1012 except W/Blue cover & case. With O/B terminals for ht/cl changeover valves | no longer available |
| Y8900A1002 | KIT containing one (1) PC8900A1007 and one (1) W8900A1046. Up to 2 heat/ 2 cool, this W8900A tries to control to the homeowner's selected Relative Humidity setting but limits over cooling to a maximum of 3° below the cooling temperature setpoint. | no longer available |
| W8900B1002 | For 24 Vac heat pump systems up to 3 stage heat/2 cooling for conventional system mounts near equip. All Htg, clg, vent, humid & all sensors & PC8900 wire to W8900. | no longer available |
| W8900B1010 | --No longer available or produced-- For 24 Vac heat pump systems up to 3 stage heat/2 cooling for conventional system mounts near equip. All Htg, clg, vent, humid & all sensors & PC8900 wire to W8900. With blue cover and case. | no longer available |
| W8900C1000 | Up to 2 stage heat/2 cooling with cooling humidity reheat algorithm; model available with O and B terminals for zoning. For application in hot high humidity climates. | no longer available |
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| C7089A1002 | PC8900/Panel/W8900 Remote Module  ¹ |
$40.62 |
| HONC7089B1000 | Chronotherm IV(T8500 & T8600 Series) thermostats and TZ-4 Zone Panel |
$33.94 | C7100A1015 | 13 inch averaging sensor used with W7100,W8900 and others. ¹Discharge Sensor; used to sense temperature in discharge or return air and to troubleshoot system operation. |
$81.20 $67.15 ea. |
| C7189A1001 |  ¹Provides remote temperature input to W8900, remote module and VisionPRO (TH7000 & TH8000) and can be installed in quantities of 1, 4 or 9 per system. White |
$45.73 |
| CM8900A1009 |  ¹
The Communication Module plugs directly into W8900 to allow communication via telephone to change settings. |
$73.45 |
| W8735B1003 |  ¹
W8735B Telephone Access Module provides remote telephone access to an HVAC system when used with a T8635L, an EnviraCOM™ enabled thermostat such as the TH9421C1004 VisionPRO IAQ Total Home Comfort System, or the TH5320C1002 FocusPRO and the appropriate interface modules W8635A or W8635B. The W8735B can be used with conventional or heat pump applications. The W8735B can provide remote access of up to nine zones when used with the W8703A Damper Interface Module(s). When used with C7835A Discharge Temperature Sensor, additional HVAC diagnostics, such as equipment performance monitoring, are available. The W8735B uses Enviracom™ Network, a low-cost, wired communications protocol. Available while supplies last. See W8735D below. |
$348.83 |
| HONW8735D1009 |  ¹
The W8735D Telephone Access Module (2 channels, 9 zones ea.) provides remote telephone access to the HVAC system when used with:
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$451.58 $351.92 |
| HONW8735D1017 | The W8735D Telephone Access Module is identical to the W8735D1009 but for zones capability. Has 4 channels. * Supports 18 zones (W8735D1009) ; 36 zones (W8735D1017) when using zone panels. |
$666.62 $482.39 |
| HONC7835A1009 |  ¹
Discharge Air Temperature Sensor for use with the W8735B Telephone Access Module Used with Honeywell Network Zoning System and single unit zone applications (W8835 &: W8635). |
$71.70 $56.95 |
| WS1 | A solid state control designed to help prevent flooding, damage to carpets, walls, furniture, ceilings, etc. Turns system off when
detecting moisture due to condensate or drain leaks. As few as one or two drops will cause a wet switch to turn off a unit or sound alarm.
Easily reset. Can also be used with the W8735B1003 Telephone access module to give alert when away from home.
Requires 24 Vac and has one Normally Open and one Normally Closed contact to alert or sound alarm. * LED activation indicator. * Contact rating: 2A |
click here to see price |
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| Model Number | Description | Color | Minimum Purchase | Price |
| 205224A | Wall Cover Plate; used when PC8900 cannot cover wall marks from old thermostat. |
$13.28 | ||
| 32004796-001 | Replacement door assembly for PC8900 Door P/N 205215 with programming label number 208352 glued in place. |
$13.26 | ||
| 202689A | Mounting Plate Accessory; used when C7189A cannot cover wall marks from old thermostat. |
$13.26 | ||
| 0144FS | Remote air pressure switch | $33.08 | ||
| 18/2 Wire | Remote sensor hook-up wire #18 wire with 2 solid conductors in single sleeve |
$ .10 per ft | ||
| 18/5 Wire | Thermostat hook-up wire #18 wire with 5 solid conductors in single sleeve |
$ .20 per ft | ||
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If you have
comments or suggestions, please email me at James' A/C Co.
