Instruction/ maintenance manual of the product 50TFQ004-012 Carrier
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Manufactu rer reser ves the rig ht to dis continue , or chan ge at a ny time, spec ificat ions or des igns without notice an d withou t inc urring obligations.
2 AP O L LO CO N T RO L — The Apollo control (see Fig. 4) has the following features: • serves as interface between thermostat, Carrier rooftop unit, and any extern al field-supplied sens ors • powered b y 24 vac/10 va; s upplies thermostat with 10 vdc.
3 Thermostat I nstallati on — Begin the thermostat in- stallation by determining where the thermostat will be located. In most cases, this wi ll be pre-determined by t he building plans. Locate the thermosta t on an interi or wall, about 5 ft from the ground.
4 Fig. 6 — Thermostat and Apollo Control Wiring NO TE: Refer to Product Suppor t Bulletin No . 93-005 f or shielded wire applica- tions when wir ing the thermo stat to the Apollo control and for all communication bus wiring connect ions or contact your local representative.
5 TROUBLESHOO TING See Fig. 7-10 for A pollo factory , control, and system wiring. Blank Displa y or Blinking Displa y at the Thermostat 1. Check to ensure there is at least 20.5 vac across the 2 termi- nals labelled 24 vac. If there is not at least 20.
6 Fig. 7 — Factory-Supplied Wiring to Rooftop Unit and Apollo Control LEGEND COM — Com munication ECONO — Economizer NC — Nor mally Closed *Filter status s witch and humidity sensor cannot function simultaneously . Only one sensor can be wired.
7 *Filter status s witch and humidity sensor cannot function simultaneously . Only one sensor c an be wired. Fig. 9 — Apollo Control Wiring Schematic — 50HJQ, 12 1 / 2 and 15 T on Units LEGEND C.
Manufactu rer reser ves the rig ht to dis continue , or chan ge at a ny time, spec ificati ons or des igns without notice an d wit hout inc urring obligations.
An important point after buying a device Carrier 50TFQ004-012 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Carrier 50TFQ004-012 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Carrier 50TFQ004-012 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Carrier 50TFQ004-012 you will learn all the available features of the product, as well as information on its operation. The information that you get Carrier 50TFQ004-012 will certainly help you make a decision on the purchase.
If you already are a holder of Carrier 50TFQ004-012, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Carrier 50TFQ004-012.
However, one of the most important roles played by the user manual is to help in solving problems with Carrier 50TFQ004-012. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Carrier 50TFQ004-012 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
