©Johnstone Supply eCatalog 216

VENTILATORS Draft Inducers

High Temperature Blowers and Draft Inducers • Exhausts hazardous flue gases from furnaces, boilers, unit heaters and water heaters

• Plug-in connections • The L43-992 is the standard interlock control for the full line of fixed speed venters, draft inducers and combustion air in-forcers • The L43-992 is included with the X89-438 , X89-439 and X81-964 • The L43-993 is used in conjunction with the L43-992 to interlock up to one additional 24 VAC, 115 VAC or millivolt controlled applicance Note: Not for wood burning applications. Adapters are required to fit pipe sizes other than 4".

• Used to improve burner combustion efficiency by overcoming back drafts, negative building pressure and minor sizing errors • Sidewall power venters feature safety controls to prevent burner from firing until venter operation is proven • UC-1 interlock contains adjustable pre and post purge, LED stater diagnostic indicators, proven switch check circuit and selectable voltage • To vent low BtuH millivolt appliances use water heater venting package X89-440

A

B

C

D

Max. Gas BtuH Input Wt. Lbs.

Each

Fig. Order # Mfg. #

Description

Amps 1.26 1.26

RPM 3000 3000 3300 1600 1725 3000 1550 1550

Volts

Duct Size

Application

X89-438 X89-439 X81-964 X72-253 X72-254

A A A A A B B C D

HSJ HS1 HS2 HS3 HS4

Sidewall Vent Sidewall Vent Sidewall Vent Sidewall Vent Sidewall Vent Sidewall Vent Draft Inducer Draft Inducer

115 115 115 115 115 115 115 115

4"

Heaters Heaters Heaters Heaters Heaters

125,000 8 300,000 9 600,000 16 700,000 23 1,200,000 45 50,000 14 111,000 8 360,000 10

1099.00 1099.00 1545.00 2845.00 3699.00 1645.00 595.00 595.00 455.00 495.00

4" to 6" 6" to 8"

1.51

2.7 5.8

8"

8" to 10" 3" to 4" 3" to 6" 5" to 8"

— X89-446 VP-2F

0.80 0.43 0.74

Water Heaters All Applications All Applications

X89-443 DJ-3 X89-444 D-3

L43-992 L43-993

UC1

Universal Control

—

— —

— —

— —

Accessory for All Applications — 3 Used in Conjunction w/the UC1 — 3

MAC1E Multiple Appliance Control —

Water Heater Control Module Kit • Used with X89-438 or X89-439 when furnace and water heater are vented by a single power venter • Features safety interlock

• Module contains gas pressure switch, spill switch and thermocouple junction adapter • Factory pre-wired, color coded connections for simple installation • Weight: 3 lbs.

Each

Order # Mfg. # X89-440 WHKE

505.00

Sidewall Vent Hoods • Flow-through baffle, built-in 1" clearance from combustibles

Each

Order # Mfg. #

Description

X89-441

VH1-3

3" Pipe 4" Pipe 6" Pipe

359.00 449.00 465.00

X89-442 VH1-4

X81-965

VH1-6

Fan Proving Switch for Draft Inducers • Monitors pressure within draft inducer fan housing

• Burner fires only after inducer operation is proved • Mounting hardware included • Weight: 1-1/2 lbs.

• Motor or wheel failure decreases pressure, activates pressure switch, thus preventing combustion • Simple installation; fixed set point

Each

Order # Mfg. # X89-445 PS1505

265.00

227

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