FAFCO 500 Series, Руководство по установке

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6: Tubing & Sensor Installation—Roof (Continued)
STEP 2: UPPER ROOF JACK CONNECTION
At the upper roof jack, cut off tubing and install elbow fitting. Lubricate the cut off tubing
with water or silicon and insert 3” into reservoir rubber grommet. Cut tubing to length and
connect to elbow fitting. Use tube supports and collet clips.
STEP 1: FILL SYSTEM WITH WATER AND PURGE AIR
STEP 2: ADD FAFCO HEAT TRANSFER FLUID (HTF) TO SYSTEM
STEP 3: COLLECTOR CONNECTION TO RESERVOIR
Connect an elbow fitting to the collector header fitting, allowing 1/2” gap between for
collet clip installation. Connect a second elbow to the first, allowing 1/2” gap between.
Lubricate one end of remaining tubing and insert 3” into reservoir rubber grommet.
Slide the roof sensor sleeve over tubing, cut tubing to length, and connect to elbow
fitting. Insert sensor fully into sensor sleeve pocket. Note: Optionally, the sleeve can be
installed between the collector and the first elbow.
Fill bucket with required amount of FAFCO HTF.
Flip 3-way valve to allow flow from bucket. Pump
FAFCO HTF into system. As glycol is pumped into
the system an equal amount of water will purge
from the reservoir onto the roof. This is normal. The
fluid will evaporate without staining the roof. TAKE
CARE TO SHUT PUMP OFF BEFORE IT STARTS
SUCKING AIR INTO THE SYSTEM!! Verify a
FAFCO Heat Transfer Fluid (HTF) Required
Collectors FAFCO Heat Transfer Fluid
48 sq. ft 3 gallons
96 sq. ft 4 gallons
144 sq. ft 5 gallons
Ensure relief valve is not installed on reservoir. This is installed at the final step. Attach
garden hose to solar system fill port using garden hose adapter. Attach piece of solar tub-
ing to solar system drain port and put end of tubing into an appropriate location to drain.
Open drain and fill ports. Turn on garden hose to fill system with potable water. Monitor
water coming from drain line and reservoir on roof until it is returning as a solid stream with
no bubbles. Shut valves in the following order: (1) Drain Line, (2) Fill Line, then (3) Hose
bibb. IMPORTANT: ENSURE THERE IS NO AIR IN THE LINES BEFORE PROCEED-
ING. COMPONENTS CAN BE DAMAGED IF AIR IS NOT FULLY PURGED. Check for any
leaks. Check all fittings and components for leaks and correct as required. Check that all
push fittings are tight.
Fill valve
Fill pump
3-way
valve
STEP 1: FILL WATER HEATER & ACTIVATE
Open hot water faucet & Main Water. Remove the aerator screen from a faucet in the home and turn on the hot
water. Alternatively, open the hot water on a bathtub faucet. Open main water valve to house. Open water valve
to water heater. Check plumbing for leaks and repair as needed. Turn off faucet and re-install aerator screen
after air is purged . Turn on water heater. For electric water heater, turn circuit breaker on. For gas water heater,
turn on gas and follow the instructions on your water heater to light pilot. Inspect tank fittings for leaks and tighten
if needed.
8: System Start-up
7: System Fill
minimum 35% HTF concentration with a refractometer (provided in fill kit). The corresponding freeze point on the
refractometer is +2F (-17C). Note: FAFCO HTF is the only acceptable fluid for mixing and filling of the system. “Un-
der no conditions shall pure unmixed Fafco HTF or any other pure glycol mixture be left in the collector loop. Such
a fluid might be flammable under certain conditions and would immediately render the warranty void.”