
Document 472119
Roof Curb and Duct Adapter Assembly
®
Model ERVe
Assembly and Installation Instructions
Please read and save these instructions for future reference. Read carefully before attempting to assemble,
install, operate or maintain the product described. Protect yourself and others by observing all safety
information. Failure to comply with instructions could result in personal injury and/or property damage! Upon
receiving the product, check for any damage that may have occurred during transit and report it immediately
to the shipper. Also verify that all accessory items are accounted for.
STEP 1: Unpack and Inspect Parts
ERVe
Part Description Quantity
Roof Curb Kit
1. 14-inch 1 898453 898456 898459 898462
2. 18-inch 1 898454 898457 898460 898463
3. 24-inch 1 898455 898458 898461 898464
End Channel
1. 14-inch 2 753874 753888 753940 753954
2. 18-inch 2 753884 753900 753949 753960
3. 24-inch 2 753886 753901 753951 753962
Side Channel
1. 14-inch 2 753875 753889 753941 753955
2. 18-inch 2 753885 753901 753950 753961
3. 24-inch 2 753887 753937 753952 753963
Center Channel
End Support
Insulation Pan
Duct Adaptor
Hardware Kit
Screws, SMS (A) 12 x 0.625 (IHH) 36 415180 415180 415180 415180
1 753876 753890 753942 753956
1 753877 753891 753943 753957
2 753878 753892 753944 753958
1 753879 753893 753945 753959
1 852902 852902 852902 852902
ERVe-20 ERVe-35 ERVe-45 ERVe-55
Part # Part # Part # Part #
®
Roof Curb and Duct Adaptor Assembly 1

STEP 2: Assemble Main Curb for Model ERVe
Instructions: • See ERVe Main Curb Assembly for positioning of the correct hardware.
• Align the holes and fasten as shown below.
ERVe Hardware Required:
(24) Screws, SMS (A) 12 x 0.625 (IHH)
(2) End Channels
(1) Center Channel
(2) Side Channels
(1) End Support
End Channel
Side Channels
L
Overall Curb Dimensions for Model ERVe
ERVe-20 ERVe-35 ERVe-45 ERVe-55
W 40.353 48.478 55.478 65.416
L 61.103 63.353 67.353 78.228
All dimensions shown are in inches.
Center
Channel
SPECIAL TOOLS REQUIRED
• Cordless drill
5
•
/16 in. Nut setter
• Awl — for hole alignment
End
Support
End Channel
W
STEP 3: Final Roof Curb Assembly for Model ERVe
ERVe Hardware Required:
(4) Screws, SMS (A) 12 x 0.625 (IHH)
(2) Insulation Pans
(1) Duct Adaptor
Insulation Pan
Insulation Pan
®
Phone: 715.359.6171 • Fax: 715.355.2399 • Parts: 800.355.5354 • E-mail: gfcinfo@greenheck.com • Website: www.greenheck.com
All curbs shipped for ERVe units will include a duct
adaptor regardless of ducting arrangement.
Duct
Adaptor
NOTE
472119 • Roof Curb and Duct Adapter Assembly, Rev. 3, November 2019 Copyright 2019 © Greenheck Fan Corporation2