Brochure
DIMENSIONS
Model UDAS ±1/16" (2mm)
Size
Top
Flue
Connector
Access
Panel
J
Non-Access
Side Bottom
K
Rear
L
inches mm inches mm inches mm inches mm inches mm inches mm
30-125 1 25 6 152 18 457 1 25 1 25 18 457
150-400 4 102 6 152 18 457 2 51 1 25 18 457
CLEARANCE FROM
COMBUSTIBLES
J
Access Panel clearance is required for service clearance to controls
K
Suspend the heater so that the bottom is a minimum of 5’ (1.5M) above the oor.
L
Rear clearance is required for air movement. Rear clearance should be measured from the fan motor.
Refer to Reznor web site www.RezSpec.com for venting/inlet air requirements for Reznor Separated Combustion Units
Size A B C D E F G H J K M N P Q R S T
30, 45 12 1/8 26 5/8 10 13 13/16 26 21 9/16 5 3/16 6 1/2 2 11/16 3 7/8 17 3/8 11/16 4 5/16 13 9 9/16 2 15/16 2 15/16
60 15 1/8 26 5/8 13 13 13/16 27 21 9/16 7 7/8 6 1/2 5 1/2 3 7/8 17 3/8 11/16 4 5/16 13 10 1/2 3 1/4 2 15/16
75 15 1/8 26 5/8 13 13 13/16 27 5/8 21 9/16 7 7/8 6 1/2 5 1/2 3 7/8 17 3/8 11/16 4 5/16 13 10 1/2 3 1/4 2 15/16
100 23 1/8 26 5/8 21 13 13/16 28 5/8 21 9/16 14 1/2 6 1/2 8 3/4 3 7/8 17 3/8 11/16 4 5/16 13 10 1/2 4 5/8 2 15/16
125 23 1/8 26 5/8 21 13 13/16 29 3/8 21 9/16 14 1/2 6 1/2 8 3/4 3 7/8 17 3/8 11/16 4 5/16 13 10 1/2 4 5/8 2 15/16
150, 175,
200
20 1/8 38 3/16 16 23 42 35 3/8 8 1/2 8 1/4 5 7/16 6 1/2 25 11/16 1 3/8 8 3/16 22 3/16 16 3/8 4 1/8 8 5/16
225, 250 26 1/8 38 3/16 22 23 42 35 3/8 13 1/16 8 13/16 9 6 1/2 25 11/16 1 3/8 8 3/16 22 3/16 15 5/8 5 9/16 8 5/16
300, 350,
400
34 1/8 41 30 23 42 35 3/8 17 1/16 9 11 13/16 7 5/16 27 11/16 1 3/8 8 3/16 22 3/16 16 3/16 9 1/16 8 9/16
Size A B C D E F G H J K M N P Q R S T
30, 45 (308) (676) (254) (351) (660) (548) (132) (165) (68) (98) (441) (17) (110) (330) (243) (75) (75)
60 (384) (676) (330) (351) (686) (548) (200) (165) (140) (98) (441) (17) (110) (330) (267) (83) (75)
75 (384) (676) (330) (351) (702) (548) (200) (165) (140) (98) (441) (17) (110) (330) (267) (83) (75)
100 (587) (676) (533) (351) (727) (548) (368) (165) (222) (98) (441) (17) (110) (330) (267) (117) (75)
125 (587) (676) (533) (351) (746) (548) (368) (165) (222) (98) (441) (17) (110) (330) (267) (117) (75)
150, 175,
200
(511) (970) (406) (584) (1,067) (899) (216) (210) (138) (165) (652) (35) (208) (564) (416) (105) (211)
225, 250 (664) (970) (559) (584) (1,067) (899) (332) (224) (229) (165) (652) (35) (208) (564) (397) (141) (211)
300, 350,
400
(867) (1,041) (762) (584) (1,067) (899) (433) (229) (300) (186) (703) (35) (208) (564) (411) (230) (217)
Form RZ-C-UH (Version H) Page 7
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