3: Tank Plumbing - FAFCO 500 Series Installation Manual

2: Roof Mounting (Continued)
STEP 7: INSTALL BODY STRAPS
Apply roof sealant at lag screw location, 1" from collector edge, 4" down
from the top header. Drive a lag screw through the base.
Orient the slot for the strap horizontally and tighten lag screw. Lay the
strap in the slot of the base and screw down the cap until tight. Install base
on opposite side of the three panels 1" from the collector edge. Stretch
strap across panels and screw down with cap until tight. Install another
base and cap between panels. Measure to center of collectors and install
a center body strap following previous procedure. Install the third collector
body strap 4" above the bottom header. Straps will allow for expansion
and contraction of the solar collectors.
STEP 8: INSTALL LOWER ROOF JACK
At the lower header end, diagonally opposite the upper outlet header end,
install the lower inlet header roof jack 4-6 inches out from the header, as de-
tailed in Steps 5 & 6 above. Note: This jack does not get a sensor.
3: Tank Plumbing - Single Tank
Note: Install a new water heater at this point if the existing water heater will not be used.
Follow the water heater manufacturer's installation instructions. A drip pan with a drain
line to the outside of the building is required whenever water storage tanks are located
above living space.
STEP 1: TURN OFF WATER HEATER
For electric water heaters: turn off the circuit breaker and verify with a volt meter at the top of the water heater.
STEP 2: SHUT OFF WATER SUPPLY
Shut the cold water inlet valve to the water heater. This is usually a ball or gate valve located near the top of the water
heater. Shut off water to the home at the main water shutoff.
STEP 3: CONNECT HOSE TO DRAIN BIBB
Connect a garden hose to the drain connection at the bottom of your water heater. Make sure discharge end of
the hose is in a safe place for hot water to flow. Open the drain bibb.
STEP 4: OPEN PRESSURE-RELIEF VALVE
As water heater is draining, open the pressure-relief valve on the side or top of the heater. When heater is empty,
remove hose, close drain bibb and relief valve.
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