Revolv Coil Installation Instructions

2
GENERAL COIL INSTALLATION NOTES
ALL COILS SHOULD BE CHECKED FOR PRESSURE
BEFORE LEAVING THE DISTRUTOR OR BEFORE
INSTALLATION! IF THERE IS NO PRESSURE
PRESENT, THE COIL MAY HAVE DEVELOPED A
LEAK DURING SHIPMENT AND SHOULD BE
RETURNED TO THE POINT OF PURCHASE FOR
EXCHANGE.
1. O
n a quick connect coil, test for pressure by pushing against
the diaphragm located inside the quick connect fitting on the
suction manifold. If you are not able to depress the diaphragm,
the coil contains an R-410A holding charge. To test for
pressure on a sweat connect coil, remove the cap or flare nut
on the Schrader fitting and depress the core valve located on
the suction manifold.
2. The blower and duct system must be properly
sized in order to provide adequate cooling and
heating performance. Select the correct motor speed tap on the
furnace blower to give the required CFM needed for rated
cooling capacity or upgrade the blower assembly to attain the
proper CFM. Return air filters of generous size must be
provided, in order to avoid contaminating the coil, blower and
ductwork, or restricting necessary airflow. Failure to deliver
the proper air flow across the indoor coil will cause system
and/or component problems, i.e. TXV performance problems.
3. It is essential that the indoor coil and outdoor unit be
properly matched and charged with the proper amount of
refrigerant. Incorrect charge levels will result in inefficient
operation. See more details in installation instructions for the
outdoor unit.
4. It is recommended that the coil be sprayed with liquid detergent
thoroughly and rinsed thoroughly before installation to assure
proper drainage of condensate from the coil fins to eliminate
water blowoff and to assure maximum coil performance. If not
sprayed, approximately 50 hours of break in time is required to
achieve the same results.
6. Always be sure coil is installed level or sloped slightly toward
primary and secondary (the higher of the two) drain fittings.
If mandated by code, connect both drain lines to open drain,
but never to a closed sewer. Pitch drain lines away from drain
pan. Always, test drain lines with water before operating. This
step is mandatory in all manufactured housing installations.
Reduction in size of the drain lines is not recommended and
many times not allowed.
7 A WATER TRAP is recommended on all coil applications,
but IS REQUIRED ON PULL THROUGH
INSTALLATIONS ON ELECTRIC FURNACES.
FAILURE TO PROVIDE CAN RESULT IN IMPROPER
DRAINAGE OR POTENTIAL SHOCK HAZARD.
All Sweat Connect and R-22 TXV Quick Connect and
Sweat Connect coils are shipped from factory
pressurized with nitrogen. They do not
contain any
HCFC22 or HFC410A. Relieve nitrogen pressure
before opening the refrigerant circuit.
CAUTION!
It is mandatory to use an emergency auxiliary drain above a finished
ceiling. It must have its own drain line (a water trap is not
necessary) with its output into an open drain (not a closed sewer). It
should allow easy visual inspection so that if condensate flow is seen
the homeowner knows that the coil drain pan lines are plugged and
need maintenance.
ATTENTION!
REVOLV indoor coils have a TXV as the metering
device. However, the sensor bulb is only mounted on
the quick connect models. Therefore, on sweat connect
coils, after the suction and liquid line have been
properly connected to the coil the bulb can be mounted
on the suction line. Many times, due to space
limitations in the manufactured housing applications it
will require the sensor bulb to be mounted vertically. If
that is the case the bulb should be located at least 6”
away from a bend (elbow) and fastened on the tubing
side opposite the plane of the bend. The bulb should be
insulated using the thermal insulation to protect it from
the effects of the surrounding ambient temperature.
ATTENTION!
REVOLV coils and other accessories installed when air
conditioning is added to manufactured housing furnaces
will comply with HUD regulations requiring third party
approvals. Efficiency and capacity ratings as required by
HUD / DOE are listed in the current AHRI directory for
REVOLV model numbers [see Summit Manufacturing]
matched with the outdoor units. These coil ratings are
based on air quantities consistent with those that are
encountered in typical manufactured housing air
conditioning and heat pump applications.
NOTE!