Field Controls SWG, SWGII, SWG Stainless User Manual

SIDEWALL POWER VENTER KIT

CK series control kit

Model: SWG, SWGII & SWG Stainless Series

*Patented

TYPICAL VENTING SYSTEM COMPONENTS

1 - SWG Series Power Venter
1 - CK Series Control Kit (sold separately)

sold separately

OPTIONAL SYSTEM COMPONENTS

SWG SERIES THROUGH-WALL EXTENSION KIT

For installation in wall thickness over 8 inches. Models PEK-4 through PEK-8 are available.

FOR MOST MULTIPLE HEATING EQUIPMENT SYSTEMS

One CK Series Control Kit for each appliance. Except for a 24V gas furnace or boiler and a
30mV water heater multiple venting system, use the CK-90 Series Control Kit.

CONTENTS

Available Control Kits.................................... 2 Maintenance.............................................8

Installation Instructions ................................. 2 General Inspection ...................................8

Wiring............................................................ 7 Repair Parts..............................................9

Air Flow Adjustments.................................... 7 System Information ................................11

GENERAL SYSTEM INFORMATION

Designed for operation with natural gas, LP gas and #2 fuel oil appliances.

1. The thermostat (wall thermostat or aquastat) calls for heat and energizes a relay which activates
the power venter. After the venter motor has come up to speed, the pressure switch closes. This
closes the circuit to the burner and allows the burner to fire.

2. For millivolt controlled water heaters using the CK-20 Series Control Kit, the gas valve pressure
switch activates the power venter at the same time as the burner fires.

3. After the heating requirement has been satisfied, the thermostat circuit will open and de-activate
the burner and power venter circuit.

4. For venting systems equipped with a post purge device, the power venter operates for a period
of time after the burner has shut off to purge remaining flue gases.

DO NOT DESTROY

THESE INSTRUCTIONS MUST REMAIN WITH EQUIPMENT

CONTROL KITS
CK-20F/HWK: For operation with 30 or 750 millivolt gas-fired water heaters, gas-fired space heaters and gas-fired pool or

spa heaters with an internally mounted thermostat. Includes a fixed post purge.

CK-21: For operation with gas-fired instantaneous water heaters with a pressure tap port in the burner manifold.
CK-40F/41F: For operation with gas-fired furnaces, boilers, unit heaters and water heaters operating with a 24 VAC gas

valve. For systems not equipped with factory mounted spillage switches, use the CK-41F which includes
two GSK-3 spill switches. Includes a fixed post purge.

CK-43/43F: For draft induced 24 VAC gas valve systems. Includes a 4" MG-1 draft control and electronic post purge.

The CK-43F includes a fixed post purge.

CK-61: For operation with oil-fired systems. Has electronic post purge.
CK-62: For operation with oil-fired systems. Has thermally activated post purge.
CK-63: For operation with oil-fired systems. Has electronic post purge. For operating venter with or without burner

motor.

CK-81: For operation with 750 millivolt operated boilers, furnaces, water heaters, pool or spa heaters and gas-

fired fireplaces when operating with remote mounted thermostat. Operated off a 24 VAC thermostat. For
operation off of a 120 VAC thermostat or wall switch, use the CK-80.

CK-91/91F: For gas fired draft induced 24 VAC gas valve systems and a 30 millivolt operated water heater. Includes a

4" MG-1 draft control and an electronic post purge. The CK-91F includes a fixed post purge.

CK-92*/92F: For operation with gas -fired furnaces, boilers, unit heaters and water heaters operating with a 24 VAC gas

valve and a 30 millivolt operated water heater. Includes an electronic post purge. The CK-92F includes a
fixed post purge.

INSTALLATION SAFETY INSTRUCTIONS
CAUTION: This device must be installed by a qualified installer in accordance with the manufacturer's installation instructions.

Appliances should have a minimum of 75% combustion efficiency or have a maximum measured flue gas temperature of
550°F (Stainless steel units maximum temperature rating 650°F US/575°F CA) at the inlet of the power venter.

1. The power venting system must be installed by a qualified installer. "Qualified Installer" shall mean an individual who
has been properly trained or a licensed installer. The installer must write or imprint his name, phone number and date
of installation on the installation tag. The tag should be attached to the power venting system control kit box or power
venter unit. Recording burner and venting system initial operational information is strongly recommended as a guide
for service or burner tune-up. Enter this on the back page of this manual.

2. Safety inspection of a venting system should be performed before and after installing a power venting system on an
existing or new appliance. Procedures to follow are those recommended by the National Flue Gas Code
A.N.S.I.Z223.1, or refer to the General Installation Inspection section of this manual.

3. Plan the vent system layout before installation to avoid the possibility of accidental contact with concealed wiring or
plumbing inside walls.

4. Single wall vent pipe (refer to Diagram B) may be used to join an appliance to the venting system, but if proper
clearances cannot be maintained from combustible materials, Class B Vent Pipe should be used for gas appliances
and Class L Type Vent Pipe for oil appliances. Refer to national or local codes for guidelines.

5. Disconnect power supply before making wiring connections to prevent electrical shock and equipment damage.

6. This equipment is designed to overcome minor negative pressure conditions. To ensure extreme negative pressure
does not exist, follow the General Installation Inspection section of this manual.

7. Heating appliances equipped with draft hoods, such as boilers or furnaces, LP gas appliances and Natural gas
appliances SHOULD have a secondary spillage switch installed. On appliances without draft hoods, it is recommended
that a secondary safety switch such as a WMO-1, GSK, FTS, or TSP-1 be used. Gas-fired 30 millivolt power systems
MUST be equipped with a spillage switch.

8. Air flow adjustment MUST be made to ensure appliance efficiency. This should be done at the appliance exhaust
outlet with a velocity meter, draft gauge or by "match test procedure". A match test is in accordance with National Fuel
Gas Code A.N.S.I.Z223.1, Section 8.6.

9. On oil-fired and gas-fired heating appliances not equipped with a draft hood, a barometric draft control MUST be
installed to regulate proper air flow and fluctuations in the system's air flow during operation. Fluctuations may come
from wind loads on the outlet of the power venter, house de-pressurization during windy days and the different house
ventilation requirements between summer and winter operation. For gas appliances, use a Field Controls Type MG-1
Barometric Draft Control. For oil appliances use a Field Controls Type M or RC Barometric Draft Control. Gas-fired
draft induced systems should have a single-acting barometric draft control installed.

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INSTALLATION OF SWG POWER VENTER (See Table 1)

Table 1

UNIT SIZING CHART

OIL GAS

MAX*

OIL GPH

BTU/HR.

INPUT

MAX**

IMPUT

MAXIMUM EQUIVALENT FEET OF VENT

PIPE

AT MAX BTU/HR

INPUT

AT 60% OF MAX

BTU/HR INPUT

VENTING WITH

VENT PIPE SIZE

MODEL

21 80 3”

N/A 70,000

50 100 4”

SWG-3

--- --- ---

1.10 170,000

--- 23 3”
35 100 4”

SWGII-4HD

SWG-4s

65 100 5”

1.85 290,000

16 44 4”
51 100 5”

SWGII-5
SWG-5s

95 100 6”

2.65 416,000

28 78 5’”
68 100 6”

SWGII-6
SWG-6s

100 100 7”

28 78 6”

3.60 566,000

61 100 7”

SWG-7
90 100 8”
26 72 7”

4.75 740,000

51 100 8”

SWG-8
70 100 9”

*Rating at 100 psi. Sizing based on appliance maximum input rate not actual firing rate. **Do not exceed maximum BTU/HR input rating or maximum oil
GPH input. For multiple venting system applications, add the input for each appliance. Category I gas-fired draft induced systems require an SWGII-4HD
or larger. Category III gas-fired draft induced systems require an SWGII-5 or larger.

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PROCEDURE FOR CALCULATING TOTAL EQUIVALENT PIPE LENGTH IN FEET

1. Calculate the total equivalent feet for each type of fitting used in the venting system from the chart below.

2. Calculate the total amount of feet for the straight lengths of vent pipe.

3. Add the equivalent feet for the fitting with the total amount of feet of straight lengths. This will approximate the total
equivalent feet of the vent system.

Table 2

EQUIVALENT LENGTH (FEET) OF VENT PIPE FOR VENT PIPE FITTING

VENT PIPE DIAMETER

VENT PIPE FITTINGS

TEE
90° ELBOW
45° ELBOW

d/D

3” 4” 5” 6” 7” 8” 9” 10”

19 25 31 38 44 50 56 63

5 7 9 11 12 14 16 18
3 4 4 5 6 7 8 9

SUDDEN REDUCER
OR INCREASER
FOR 3 *RATIOS (d/D)

1/4 8 11 14 17 19 22 25 28
1/2 5 7 8 10 12 13 15 17
3/4 2 3 3 4 4 5 6 6

*Reducer or increaser ratio (d/D) small diameter divided reducer
ratio is d/D = 4/8 = 1/2. To estimate the equivalent foot length for
the fitting, use the smaller pipe diameter for the equivalent length
figure. Example 4" to 8" reducer; the reducer ratio is 1/2 and the
smaller pipe diameter is 4". So, from the chart, the equivalent feet
would be 7 feet. (See Figure 1)

Figure 1

Example: System Pipe Size = 4"

Step 1 Two 4" 90° elbows @ 7 feet each = 14 ft.
Step 2 Ten 2 foot lengths of 4" pipe = 20 ft.
Step 3 Total equivalent feet = 14 ft. + 20 ft. = 34 ft.

INSTALLATION

CAUTION: Failure to install, maintain and/or operate the power venting system in accordance with manufacturer's
instructions will result in conditions which may produce bodily injury and/or property damage.

1. Remove power venter from box and inspect unit for damage. If the carton has been crushed or mutilated, check unit
very carefully for damage. Rotate blower wheel to insure that the motor and blower wheel rotate freely. DO NOT install
if any damage is apparent. Refer to unit sizing chart to check proper venting sizing.

2. Location of the termination of the venting system should be installed in accordance with the National Fuel Gas Code
A.N.S.I.Z223.1, manufacturer's recommendations and/or local codes which are applicable. See requirements below or
refer to installation location, Diagram A, for typical locations.

a. The exit termination of mechanical draft systems shall not be less than 7' above grade when located adjacent to

public walkways.
b. A venting system shall terminate at least 3' above any forced air inlet located within 10'.
c. The venting system of other than a direct vent appliance shall terminate at least 4' below, 4' horizontally from or 1'

above any door, window or gravity air inlet into the building.
d. The vent termination of a direct vent appliance with an input of 50,000 BTU's per hour or less, shall be located at

least 9" from any opening through which vented gases could enter the building. With an input over 50,000 BTU's

per hour, a 12" termination clearance shall be required.
e. The vent termination point shall not be installed closer than 3' from an inside corner of an L-shaped structure.
f. The vent termination should not be mounted directly above, or within 3' horizontally from an oil tank vent or gas

meter.
g. The bottom of the vent terminal shall be located at least 12" above finished grade.

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