RT-SVX25C-EN
11
General Information
Note:
The supply and return air smoke detectors are designed to shut off the unit if smoke is
sensed in the supply air stream or return air stream. This function is performed by sampling
the airflow entering the unit at the return air opening. Follow the instructions provided
below to assure that the airflow through the unit is sufficient for adequate sampling. Failure
to follow these instructions will prevent the smoke detectors from performing it's design
function.
Note:
Airflow through the unit is affected by the amount of dirt and debris accumulated on the
indoor coil and filters. To insure that airflow through the unit is adequate for proper
sampling by the return air smoke detector, complete adherence to the maintenance
procedures, including recommended intervals between filter changes, and coil cleaning is
required.
Note:
Periodic checks and maintenance procedures must be performed on the smoke detector to
insure that it will function properly. For detailed instructions concerning these checks and
procedures, refer to the appropriate section(s) of the smoke detector Installation and
Maintenance Instructions provided with the literature package for this unit.
In order for the supply air smoke detector or return air smoke detector to properly sense smoke
in the supply air stream or return air stream, the air velocity entering the smoke detector unit must
be between 500 and 4000 feet per minute. Equipment covered in this manual will develop an
airflow velocity that falls within these limits over the entire airflow range specified in the evaporator
fan performance tables.
There are certain models, however, if operated at low airflow, will not develop an airflow velocity
that falls within the required 500 to 4000 feet per minute range. For these models, the design airflow
shall be greater than or equal to the minimum CFM specified in the table provided below.
Failure to follow these instructions will prevent the smoke detector from performing it’s design
function.
Wall Mounted Relative Humidity Sensor (BAYSENS036A)
Field installed, wall mounted humidity sensor is used to control activation of the hot gas reheat
dehumidification option. Humidity set points can be selected for relative humidity levels between
40% and 60% by adjusting the DEHUMID setting on the ReliaTel Options Module. See page 19.
Duct Mounted Relative Humidity Sensor (BAYSENS037A)
Field installed, wall mounted humidity sensor is used to control activation of the hot gas reheat
dehumidification option. Humidity set points can be selected for relative humidity levels between
40% and 60% by adjusting the DEHUMID setting on the ReliaTel Options Module. See page 19.
Unit Inspection
As soon as the unit arrives at the job site:
•
Verify that the nameplate data matches the data on the sales order and bill of lading (including
electrical data).
•
Verify that the power supply complies with the unit nameplate specifications.
•
Visually inspect the exterior of the unit, including the roof, for signs of shipping damage.
•
Visually inspect the internal components for shipping damage as soon as possible after
delivery and before it is stored. Do not walk on the sheet metal base pans.
•
If concealed damage is discovered, notify the carrier’s terminal of damage immediately by
phone and by mail. Concealed damage must be reported within 15 days.
Unit Model Number
Minimum Allowable Airflow with Return Air Smoke Detector
TCD181
5300 CFM
