Field Controls 46477000 User Manual

DRAFT INDUCER KIT WITH CONTROL KIT

Model: DI PAK MV & DI PAK MVFG

(NOTE: DI PAK MVFG units are designed for the Flame Guard units built

by American Water Heater. All other manufacturers use DI PAK MV)

This draft inducer kit is designed for installation onto vent systems serving
30 millivolt standing pilot gas fired water heaters with gas valves having a
manifold pressure tap port (1/8 FPT)

NOTE: DI-1 Model must be used on 4” diameter vent pipe.

I

TEMS INCLUDED IN KIT

1) DI-1,2 or 3 Draft Inducer with pre-attached power cable

1) Fan control gas pressure switch with built in post purge option and pre-wired power cord

1) 1/8" NPT x 3 inch pipe nipple

1) 1/8" NPT pipe tee

1) TCA-1 Thermocouple Adapter (DI PAK MV)

1) TCA-2 Left Handed Thermocouple Adapter (DI PAK MVFG)

1) 6 ft. length of 12-2 wire

1) 12 inch jumper wire

1) Flexible conduit connector

2) GSK-3 Spillage Switch

DO NOT DESTROY

THESE INSTRUCTIONS MUST REMAIN WITH EQUIPMENT

CAUTION:

This device is NOT designed for sidewall venting applications. The vent to which the inducer is to be mounted is to be
installed in accordance with NFPA 54, NFPA 31, or other local codes.

This device MUST be installed by a qualified installer in accordance with the manufacturers installation instructions.
Appliances should have a maximum measure flue gas temperature of 750°F at the desired location of the draft inducer.
“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 tag provided with this device. The tag MUST be
attached to the draft inducer. Recording burner and draft inducer operation information (draft level, efficiency, etc) is
recommended as a guide for future service.

Draft inducers are designed to increase draft in venting applications where inadequate natural draft exists.

I. INSTALL THE DI-SERIES DRAFT INDUCER ON THE FLUE

PIPE (Figure 1)

1. Refer to the included DI instruction manual for this
procedure. Set the draft adjustment plate on the draft
inducer to maximum setting before installing

NOTE: The draft inducer proving switch (DIP-1) and DI-CK
Control Kit adapter kit are not required with the DI PAK MV and
MVFG kits.

II. INSTALLATION OF GAS PRESSURE SWITCH
CAUTION: Check gas control valve pressure. Pressure must not

exceed 14" WC pressure.

1. Remove pressure tap plug in gas valve. (See Figure 2)

Figure 1

NOTE: If installing on an existing appliance, shut off gas supply to

gas valve before plug removal.

2. Replace the pressure tap plug with the 1/8" pipe nipple and pipe tee. Install pressure tap plug at the bottom of the
pipe tee. (See Figure 3)

3. Install the gas pressure switch into the side of
the pipe tee. The gas pressure switch is
supplied with a restrictor orifice in the inlet and
outlet ports. With these orifices in place, the
switch does not need to be vented. This
feature complies with current ANSI standards
for gas regulators. (See Figure 4)

CAUTION: If for any reason the system has shut
down during operation, the cause of the system
failure should be investigated and corrected before
resetting the safety switches and restarting the
system.

Figure 2

Figure 3

III. DRAFT HOOD SAFETY SWITCH

INSTALLATION

NOTE: 12 ga. wire must be used when wiring

safety spillage switches, to reduce the voltage drop
in the thermocouple circuit.

1. Remove the thermocouple from the gas control
valve. (See Figure 2)

2. Thread the junction block into the
thermocouple port and thermocouple into the
bottom of the junction block. Connect lead wire
from the junction block to the jacketed lead
wires or wire enclosed in an accepted wiring
enclosure. (See Figure 5)

Figure 4

Figure 5

NOTE: Draft spillage switches must be mounted 90 degrees apart, and mounted

opposite from the vent outlet direction. (See Figure 6)

3. Mount the two spillage switches onto the draft hood and connect inside terminals
of switches with jumper wire. Connect outside terminals to lead wires which are
connected to the thermocouple junction block. (See Diagram A)

4. Route jacketed lead wires or accepted wiring enclosure on the outside of the
water heater enclosure. Secure them to the enclosure with an accepted hold down
tab. Keep wiring away from any HOT surface area.

Figure 6

Page 2