Carrier 28QX - Manual (Page 19)

If it is necessary, the aquastats may be removed
from the control box and mounted close to the
storage tank. If this approach is taken, 14 gauge
wire should be used to connect the aquastat to the
appropriate wires out of the control box.
Thermistor Sensor Mounting — Mount sensors so
that good thermal contact is maintained. A small
amount of G.E. insulgrease #640 (field supplied)
between the sensor and the interior tube of the
solar panel array, and also in the well used on the
storage tank sensor is recommended to improve
thermal contact.
Storage Tank Thermistor — The thermistor is not
submersible and should be placed in the remaining
bulb well at the same level in the storage tank as
the outlet to the collector pump.
Solar Collector Panel Thermistor — The collector
thermistor should be placed on the leaving tube on
an interior panel in the panel array. One of the
interior panels should be used because of reduced
edge losses and higher performance. The thermistor
should be butted up against the panel and secured
in place on the tube with a hose clamp, as
illustrated in Fig. 15. Do not overtighten clamp.
Insulate sensor and tubing.
Thermistor Wiring
Wiring, pg 20.) (See Electrical Data and
#
Fig. 24 — Typical Glycol System Piping Diagram
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