Tjernlund CSA1 Chimney Stack Assist Kit 8504201 - Manual (Page 6)

FAN MOUNTING
WARNING: The CSA1 must not be used in side wall vent terminated applications. Side wall venting requires the use of a
Tjernlund Side wall Power Venter (Model VP-2F or VP-3F). CSA1 housing is single wall material. Six inch clearance must be
maintained to combustible materials.
1. The CSA1 may be mounted on vertical, horizontal, or inclined vent connectors. If used on a horizontal or inclined vent connector,
mount CSA1 on bottom of pipe, not on top, to avoid creating a heat trap in the inducer which could overheat the motor. The motor
shaft must be level and horizontal to avoid excessive bearing wear.
2. Select a position between the draft hood, draft diverter or barometric damper and the chimney or stack where there is at least 2
pipe diameters distance from either end of the fan and elbows or tees.
3. Cut a rectangular slot in the pipe using the template provided. Fasten the CSA1 in place with the provided speed clips and screws.
4. The front flange of the fan fits inside the vent pipe cut out and should point toward the chimney. Seal any opening around the CSA1
and vent pipe cutout with RTV high temperature silicone sealant.
ELECTRICAL
Route the control cable supplied with the CSA1 back to the water heater controls along the ceiling joists, taking care not to come clos-
er than 6” to the vent pipe or any other potentially hot surface. In most cases, the gas supply line may be used as a routing path from
the ceiling to the Gas Pressure Switch, the supplied nylon straps may be used to secure the cable.
NOTE: If the distance between the CSA1 and the Gas Pressure Switch is greater than the length of the cable supplied, splice a sec-
tion of 2 conductor PVC sheathed, 105 degree C thermostat cable to the supplied cable. An NEC approved accessible junction box
must be used to contain the splice. Splices shall be made mechanically secure and insulated with tape or fixture type splicing connec-
tors may be employed. Strain relief hardware contained within the NEC approved junction box shall be utilized.
The CSA1 operates on 115 VAC, therefore a grounded outlet must be within reach of the six foot power cord supplied with CSA1. The
flexible power cord supplied with the unit may only be used where local codes permit. If local codes do not permit the use of flexible
power cord, follow steps below.
1. Remove the CSA1 electrical box cover, flexible cord and strain relief from the junction box.
2. Make “D” shaped hole CSA1 cord was removed from to a 7/8” diameter hole in CSA1 junction box.
3. Install suitable conduit fitting in enclosure and splice field wiring into existing wiring using code authorized method (wire nuts, etc.).
4. Replace electrical box cover.
ACTUATING AND SAFETY CONTROL CIRCUIT CONNECTIONS
1. If not previously completed, push both leads from the Linear Limit
Spill Switch onto Thermocouple Junction Adapter terminal, (See
Diagram C, Page 4). NOTE: On 750 Millivolt (power pile) heaters,
wire Linear Limit Spill Switch in series with high limit (E.C.O.) of heater,
(See Diagram D, Page 4).
2. Push the Red lead from CSA1 control cable onto the
common on the Gas Pressure Switch, (See Diagram E)
3. Push the Blue lead from the CSA1 control cable onto the
normally open terminal on the Gas Pressure Switch, (See Diag. E).
4. Plug the power cord from the CSA1 into a grounded 115 VAC outlet.
Verify that the outlet is powered through a 15 amp circuit breaker.
OPERATION CIRCUIT CHECK
1. Light the pilot following water heater manufacturer’s instructions and adjust appliance thermostat to call for heat.
2. The CSA1 fan should start and the water heater burner should ignite.
3. Adjust the appliance thermostat so that no heat is required. At this point the CSA1 and burner should shut off. The Thermocouple
Circuit has been verified.
WARNING: DO NOT OPERATE THE WATER HEATER WITHOUT THE LINEAR LIMIT WIRED INTO THE
THERMOCOUPLE JUNCTION ADAPTOR OR THERMOPILE ECO WATER HEATER SAFETY CIRCUIT.
5
BLUE WIRE FROM
CSA1 CONTROL CABLE
RED WIRE FROM
GAS PRESSURE
SWITCH
CSA1 CONTROL CABLE
8050050 4/18/13
NOTE: The installer must ensure that
all electrical connections are tight.
DIAGRAM E