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UHA UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL
34
14.4 Heat Exchanger
The standard heat exchanger assembly is compossed of multiple tubular heat exchangers in models
UHA[S]150 - UHA[S]400, there is a four pass exchange.
14.5 Louvers and Louver Spring
The louvers for standard range models UHA[S]150 - UHA[S]400 are only available in horizontal
configurations.
MODEL
UHA[S]
150
UHA[S]
175
UHA[S]
200
UHA[S]
225
UHA[S]
250
UHA[S]
300
UHA[S]
350
UHA[S]
400
Aluminized Heat
Exchanger Assembly
P/N 12117100 12116100 12115100 12114100 12113100 12112100 12111100 12111100
Stainless Heat
Exchanger Assembly
P/N 12117100SS 12116100SS 12115100SS 12114100SS 12113100SS 12112100SS 12 111100SS 12111100SS
Tube Heat Exchanger
Qty
7 8 9 10 11 12 14 14
Tube Plate 1 1 1 1 1 1 1 1
Tube Support 2 2 2 2 2 2 2 2
Tube Support Strap N/A N/A 1 1 1 1 1 1
Base Panel 1 1 1 1 1 1 1 1
End Panel Insulated 1 1 1 1 1 1 1 1
Top Panel Insulated 1 1 1 1 1 1 1 1
Rear Panel 1 1 1 1 1 1 1 1
Front Panel 1 1 1 1 1 1 1 1
Rear Fan Panel 1 1 1 1 1 1 1 1
Screws Type A/B 42 45 45 50 50 50 50 50
Push in Louver and
compress spring to
remove and replace
(opposite end first)
Horizontal
Louvers
Push in Louver and
compress spring to
remove and replace
(opposite end first)
Horizontal
Louvers
Description
UHA[S]
150 - 175
UHA[S]
200 - 250
UHA[S]
300 - 400
Horizontal Louvers P/N 11011847 11011847 11011846
Spring P/N 91901200 91901200 91901200
Quantity 7 9 11