Installation Guide
MODELS:
ITG50/VFB050B4A1
INSTALLATIONS 
Proper insulation around the fan to minimize building 
heat loss and gain. 4” circular duct is recommended 
for installation. The ducting from this fan to the 
outside of building has a strong effect on the air flow, 
noise and energy use of the fan. Use the shortest, 
straightest duct routing possible for best performance, 
and avoid installing the fan with smaller ducts than 
recommended. Insulation around the ducts can 
reduce energy loss and inhibit mold growth. Fans 
installed with existing ducts may not achieve their 
rated air flow. 
Install with wood frame 
Model No.  ITG50 / VFB050B4A1 
Install Dim. 
(Inch) 
7.5X7.25 
1.  Remove motor plate from housing by 
removing three screws. (Fig. C) 
2.  Remove wiring cover from housing by pulling 
straight out. Choose a hole and use a slotted 
screwdriver to remove it. (Fig. D) 
3.  Follow all local electrical and safety codes. 
NEVER place a switch where it can be 
reached from a tub or shower. Connect wires 
as shown in wiring diagrams. (Fig. E) 
4.  Using wire nuts(not provided), connect house 
power cable to ventilating fan wires. 14 AWG 
(2.1 mm
2
) is the smallest conductor that shall 
be used for branch-circuit wiring. (Fig. F) 
5.  Insert the duct into the duct connector and 
tape all ductworks connection to make them 
secure and airtight. Install the duct with a 
gradient 1°~2° to the outside. (Fig. G) 
6.  New installation prior to finishing the 
ceiling: Insert the fan between joists. Make 
sure the fan body is level and perpendicular 
with the joist. (Fig. H) 
7.  Replacement installation: After making 
electrical and ductwork connections (see steps 
2~5), nail housing in place. Drive nails through 
the housing where indicated by arrows. (Fig. I) 
8.  New installation in an existing ceiling :
Bend tabs outward 90°(Use a screw driver if 
desired) and position housing so that tabs rest 
against bottom edge of joists (or front of stud). 
Nail housing to joist or stud using four nails to 
ensure a solid, quiet installation. Ceiling 
installations: Tabs on opposite side of housing 
can be bent outward to rest on top of 1/2" 
ceiling material and provide extra stability. (Fig. 
J) 
9.  Plug in the motor and locking the fan body 
back by using three screws. (Fig. C) 
10.  Squeeze grille springs together and insert 
springs into slots in motor plate. Push grille up 
against ceiling. When the power on, check for 
abnormal vibration or sound. Insert the 
mounting springs into the slots and mount the 
grille to the body. (Fig. K) 
Fig. C 
Fig. C 
Fig. D 
Fig. E 
Fig. F 
Fig. G 
Fig. H 
Fig. H 
Fig. H 
Fig. I 
Fig. J 
Fig. K 
WARRANTY 
DELTA ELECTRONICS THREE YEAR LIMITED 
WARRANTY 
Delta Electronics Inc.(“Delta Electronics”) 
warrants to the original consumer purchaser in the 
USA that the Breez ventilation fan products will be 
free from defects in material or workmanship. This 
warranty is limited to three (3) years from the original 
date of purchase. 
Limitations and Exclusions 
1. During the warranty period, a replacement for 
any defective product will be supplied free of 
charge for installation by the consumer. The 
warranty provided herein does not cover charges 
for labor or other costs incurred in the 
troubleshooting, repair, removal, and installation 
service. 
2. All returns of defective parts or products must 
include the product model number, and must be 
made through an authorized Delta Electronics 
distributor. Authorized returns must be shipped 
prepaid. Repaired or replacement products will 
be shipped by Delta Electronics F.O.B. shipping 
point. 
3. Delta Electronics shall not be liable for any 
indirect, incidental, consequential, punitive, or 
special damages arising out of or in connection 
with products use or performance, regardless of 
the form of action whether in contract, tort 
(including negligence), strict product liability or 
otherwise. 
4. This warranty does not extend to fluorescent 
lamp starters and tubes. 
5. The warranty does not cover if user does not 
comply with manufacture’s installation manual. 
6. To qualify for warranty service, you must notify 
Delta Electronics at the address or telephone 
number below. 
7. Delta Electronics shall have no liability to the 
original owner-user with respect to any defect 
caused by abuse, misuse, neglect, improper 
transportation or storage, improper testing, 
improper installation, improper operation, 
improper use, improper maintenance, improper 
repair, improper alteration, improper modification, 
tampering or accident of products or parts 
thereof, or unusual deterioration or degradation of 
products or parts thereof due to a physical 
environment beyond the requirements of 
products’ specifications. 
Address: 46101 Fremont Boulevard, Fremont, 
CA 94538 
US Toll Free Number: 1-888-979-9889


