Tjernlund CSA1 Chimney Stack Assist Kit 8504201 - Manual (Page 4)

3
WITH THE ECO OF THE WATER HEATER.
REQUIRED. WIRE THE LINEAR LIMIT IN SERIES
THE THERMOCOUPLE JUNCTION ADAPTER IS NOT
ON 750 MILLIVOLT (POWER PILE) HEATERS
THERMOCOUPLE JUNCTION ADAPTER
PRESSURE TAP
FROM THERMOSTAT
6' LINEAR
LIMIT LEADS
115/1/60
NAMEPLATE
MOTOR
VENTER
POWER
SWITCH
GAS PRESSURE
GAS PRESSURE SWITCH
ALUMINUM TUBING TO
24" LONG 1/4" O.D.
LINE
GAS SUPPLY
BY OTHERS
WATER HEATER
BY OTHERS
THERMOSTAT
LINE
GAS PILOT
8050013 11/30/11
CLIPS
ROUTING
CABLE
THERMOSTAT CABLE
2 WIRE JACKETED
POWER
6 FOOT
BY OTHERS
FLUE PIPE
SWITCH SET AT 185°F
SPILLAGE SENSING
LINEAR LIMIT
GAS PRESSURE
TAP PORT
NOTE:
CORD
TJERNLUND
VENT HOOD
ACTUATION AND SAFETY CONTROLS INSTALLATION
After opening carton, inspect thoroughly for hidden damage. Fan blade should rotate freely. If any damage is found notify freight carri-
er and your distributor immediately and file a concealed damage claim.
Remove the hardware packet and Safety Controls.
GAS PRESSURE SWITCH INSTALLATION
IMPORTANT: Mount gas pressure switch so that diaphragm is in a VERTICAL position, (See Diagram A).
The gas pressure switch is mounted on the casing of the water heater adjacent to the heater's thermostat/gas control valve. It should
be mounted close enough so that the supplied 1/4" tubing will reach from the gas pressure switch fitting to the thermostat/gas valve
pressure gauge port. The two provided screws are self-tapping and drilling. The screws do not require the use of a drill and their 1/2"
length assures that the inner tank will not be penetrated.
1. Adjust thermostat to “Off” and shut off gas to the water heater.
2. Mount the gas pressure switch by securing it to the heater casing with a screw in each of the two mounting holes.
IMPORTANT: Mount gas pressure switch so that diaphragm is in a VERTICAL position, (See Diagram A).
3. Install the 1/8-NPT black pipe tee to the gas pressure switch, (See Diagram A). Use thread sealant, do not over
tighten. CAUTION: Utilize the hex nut on the gas pressure switch when attaching the black pipe tee.
4. Install the supplied Brass 1/8-NPT male x ¼" compression fitting to the 1/8-NPT black pipe tee, (See Diagram A). Use thread
sealant, do not over tighten.
5. Remove the PRESSURE TAP plug from the underside of the thermostat/gas control valve and install the supplied Brass
1/8-NPT male x ¼" compression fitting, (See Diagram A). Use thread sealant, do not over tighten.
IMPORTANT: DO NOT alter the heater's PILOT GAS LINE, (See Diagram A).
6. Use plug removed in step 5 and plug new pressure tap port in tee. Use thread sealant, do not over tighten.
7. Using a tube cutter, cut the appropriate length of the supplied 1/4" tubing to reach from the gas pressure switch fitting to the
PRESSURE TAP fitting of the thermostat/gas control valve. Make sure each end of the tubing is not pinched closed.
8. Use the 1/4" tubing to connect gas pressure switch fitting to the PRESSURE TAP PORT fitting on the thermostat/gas control valve.
9. Conduct a gas leakage test of all connections as outlined in the latest edition of NFPA 54, ANSI Z223.1, part 4 or local codes.
NOTE: A "gauge pressure tap port" can be accessed by removing the 1/8-NPT pipe plug that is on the 1/8-NPT black pipe tee
(attached to the gas pressure switch).
DO NOT ALTER
GAS SUPPLY
INTO PRESSURE TAP PORT.
GAS PRESSURE SWITCH
GAS CONTROL VALVE
THERMOSTAT/
PILOT GAS LINE
8050011 11/30/11
INSTALL BRASS 1/8-NPT MALE
x 1/4" COMPRESSION FITTING
THERMOCOUPLE
BURNER GAS LINE
COMMON
MUST BE MOUNTED VERTICALLY.
GAS PRESSURE SWITCH DIAPHRAGM
IMPORTANT:
BRASS 1/8-NPT MALE x 1/4"
COMPRESSION FITTING
THERMOSTAT / GAS CONTROL
TO PRESSURE TAP FITTING OF
1/4" OUTSIDE DIAMETER
ALUMINUM TUBING - CONNECT
VALVE.
1/8-NPT BLACK PIPE TEE
1/8-NPT PIPE PLUG - NEW
PRESSURE TAP PORT NORMALLY OPEN
MOUNTING HOLES
IMPORTANT:
A R
HO
T
W
A
M V
C
A
T
IO
N
GAS
VALVE
DIAGRAM A
REMOVE 1/8 NPT PRESSURE TAP