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Page 1

Revision: P-UEAS (11-18) PN269865R7

Supersedes: P-UEAS (03-18) PN269865R6

REPLACEMENT PARTS FOR HIGH-EFFICIENCY, LOW-STATIC UNIT HEATERS

MODEL UEAS

TABLE OF CONTENTS

REFERENCES ..............................................................................................................................................................................2

RATING PLATE .............................................................................................................................................................................2

SERIAL NUMBERS ......................................................................................................................................................................3

ELECTRICAL COMPONENTS .....................................................................................................................................................4

FLUE WRAPPER AND VENTER COMPONENTS .......................................................................................................................5

FAN AND MOTOR COMPONENTS ..............................................................................................................................................7

GAS CONVERSION KITS ............................................................................................................................................................7

BURNER ASSEMBLY COMPONENTS ........................................................................................................................................8

MANUAL SHUTOFF VALVE .........................................................................................................................................................9

HEAT EXCHANGER COMPONENTS ..........................................................................................................................................9

CONDENSATE DRAIN KIT (PN 235368) FOR REPLACEMENT HEAT EXCHANGERS ...................................................10

VENT/COMBUSTION AIR COMPONENTS ...............................................................................................................................10

LOUVER ASSEMBLY COMPONENTS ......................................................................................................................................11

NOZZLE COMPONENTS ...........................................................................................................................................................12

HANGER KIT COMPONENTS ...................................................................................................................................................13

THERMOSTAT COMPONENTS ...............................................................................................................................................13

CABINET COMPONENTS ..........................................................................................................................................................14

IMPORTANT

1. Always include complete model and serial number so that any speciﬁcation change can be considered for parts replacement. It can save time and expense.

2. In keeping with our policy of continuous product improvement, we reserve the right to alter any information shown here. Speciﬁcations are subject to change without notice.

3. We reserve the right to substitute functional replacements.

4. Order by Part Number (PN) not by option designation.

Page 2

REFERENCES

Related Technical Manuals Available from Factory Distributor

Type Form PN

Installation/operation/maintenance I-UEAS 221232 Ignition system and gas valve replacement

parts

D300522 P-VALVES 263995

RATING PLATE

SAMPLE RATING PLATE AND KEY

MERCER, PA. USA 16137

MADE IN MEXICO

SEPARATED COMBUSTION SYSTEM UNIT HEATER

CATEGORY IV

ANSI Z83.8 CSA 2.6 UNIT HEATER

MODEL [ B ] [ C ]

SERIAL NO.

[ D ] VOLTS [ D ] PH [ D ] HZ MAXIMUM TOTAL INPUT [ D ] AMPS

TYPE OF GAS: [ E ]

FOR USE AT 0-2000 FEET, 0-610 METERS OF ALTITUDE.

ORIFICE SIZE [ F ] DRILL

NORMAL INPUT

THERMAL OUTPUT CAPACITY [ L ] BTU/HR

MINIMUM INPUT

NORMAL MANIFOLD PRESSURE [ G ] IN.W.C.

MIN. PERMISSIBLE GAS SUPPLY PRESSURE

FOR PURPOSE OF INPUT ADJUSTMENT.

CLEARANCES TO COMBUSTIBLE CONSTRUCTION: TOP-4", FLUE

CONNECTION-0", CONTROL SIDE-18", OPP. SIDE-2", BOTTOM-1", FRONT-36"

FOR ALTERNATE INSTALLATIONS USE THE LATEST EDITIONS OF THE

APPROPRIATE STANDARD LISTED BELOW:

FOR AIRCRAFT HANGARS USE STANDARD ANSI/NFPA 409

FOR PARKING STRUCTURES USE STANDARD ANSI/NFPA 88A

FOR REPAIR GARAGES USE STANDARD ANSI/NFPA 88B

THIS UNIT IS NOT FOR USE WITH DUCTS.

THIS UNIT IS NOT FOR USE WITH FILTERS.

CONSTRUCTION WALL THICKNESS FOR PURPOSE OF VENTING:

1" MIN., 48" MAX.

SEA LEVEL

[ J ] BTU/HR

[ M ] BTU/HR

[ H ] IN.W.C.

Determine and correct the cause. Failure to do so could result in personal

injury or death. To reset, depress the button on the sensor located on the side

of the venter housing.

B = Model number C = Date of manufacture (month and year) D = Volts/phase/Hertz/input amps

E = Fuel type (natural gas or propane)

F = Oriﬁce size G = Normal manifold pressure (IN WC) H = Minimum gas supply pressure (IN WC) J = Normal BTUh input (sea level) L = Thermal output BTUh (sea level) M = Minimum BTUh input (sea level)

P-UEAS (11-18) PN269865R7

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SERIAL NUMBERS

Serial number format changed in June of 2015. Use the following information to decode system serial numbers:

DECODING A SYSTEM SERIAL NUMBER FOR ALL MODELS BEFORE JUNE 2015

Serial No. Sample: BLK 79 6E N 00000 Elements Key No.: 1 I 2 I 3 I 4 I 5

Key:

1 = Date code (refer to Table 1) 2 = Type of ignition system 3 = Type of gas valve 4 = Gas (N = natural; L = propane) 5 = Consecutive number

Prex Key: E = E3 (409) stainless steel heat exchanger

DECODING A SYSTEM SERIAL NUMBER FOR ALL MODELS AFTER MAY 2015

Serial No. Sample: BOG 3060 00000 Elements Key No.: 1 | 2 | 3

Key:

1 = Date code (refer to Table 1) 2 = Plant of manufacture (3060 = Mercer; 3062 = Monterrey) 3 = Consecutive number

Year

2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020

Table 1. Serial Number Date Codes (Month and Year)

Month

JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC

BGA BGB BGC BGD BGE BGF BGG BGH BGI BGJ BGK BGL BHA BHB BHC BHD BHE BHF BHG BHH BHI BHJ BHK BHL

BIA BIB BIC BID BIE BIF BIG BIH BII BIJ BIK BIL BJA BJB BJC BJD BJE BJF BJG BJH BJI BJJ BJK BJL BKA BKB BKC BKD BKE BKF BKG BKH BKI BKJ BKK BKL BLA BLB BLC BLD BLE BLF BLG BLH BLI BLJ BLK BLL

BMA BMB BMC BMD BME BMF BMG BMH BMI BMJ BMK BML BNA BNB BNC BND BNE BNF BNG BNH BNI BNJ BNK BNL BOA BOB BOC BOD BOE BOF BOG BOH BOI BOJ BOK BOL BPA BPB BPC BPD BPE BPF BPG BPH BPI BPJ BPK BPL BQA BQB BQC BQD BQE BQF BQG BQH BQI BQJ BQK BQL BRA BRB BRC BRD BRE BRF BRG BRH BRI BRJ BRK BRL BSA BSB BSC BSD BSE BSF BSG BSH BSI BSJ BSK BSL

BTA BTB BTC BTD BTE BTF BTG BTH BTI BTJ BTK BTL

P-UEAS (11-18) PN269865R7

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ELECTRICAL COMPONENTS

1 - Disconnect Switch

5 - Pressure

Switch

4 - High Temperature

ylbmessA renruB

Limit Control

Flame Sensor

Fan Motor

Code 1: Disconnect Switch

Code 2: Door Switch

6 - Time Delay Relay

7 - Venter Motor Capacitor

Ignitor

Code 3: Vent Temperature Limit Switch

Gas Valve

Control Panel Assembly

8 - Fan Motor Capacitor

9 - Transformer

10 - DSI Integrated Control Module (Circuit Board)

Code 6: Time Delay Relay

Venter

3 - Vent

Temperature

Limit Switch

for connecting thermostat

Codes 7 and 8: Venter Motor Capacitor

2 - Door Switch

11 - Te rminal Board

Code 9: Transformer

Code 4: High Temperature Limit Switch

Code 5: Pressure Switch

Code 10: DSI Control Module, Integrated Circuit Board

Figure 1. Electrical Components (Refer to Table 2)

P-UEAS (11-18) PN269865R7

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Table 2. Electrical Components

Unit Size

Code Component

1 Disconnect switch 101902 2 Door switch, Carling #TA22B-TLB-B 217262 3 Vent temperature limit switch, Thermodisc 36T26 73DD, opens at 145°F, manual reset 221158

High temperature limit switch, 180° 45602 — 45602

High temperature limit switch, 200°, yellow — 85449 — Pressure switch, Honeywell, 0–6000 feet altitude, yellow 221251 — Pressure switch, Honeywell, 0–6000 feet altitude, blue — 221228 —

Pressure switch, Honeywell, 0–6000 feet altitude, white — 1013436 Pressure Switch , Honeywell, 6001–10,000 feet altitude, green 235954 — Pressure Switch , Honeywell, 6001–10,000 feet altitude, orange — 235953

Time delay relay, 24VAC, Airotronics*

7 Venter motor capacitor, 7.5 μF, 400VAC 195643 8 Fan motor capacitor, 7.5 μF, 400VAC 195643 9 Transformer, 120/24 volts 175265

DSI control module, integrated circuit board, serial number code 79 (refer to Serial Numbers) 195265

DSI control module, integrated circuit board, serial number code A1 (refer to Serial Numbers) 269867 11 Terminal board 196813 12 Gasket, terminal board 196327 13 Wiring harness, 9-pin 234021 14 Wiring harness, 5-pin 221868

*Used on units manufactured before DEC 2012. Time delay relay is not used with DSI control module, integrated circuit board (code 10, PN

269867).

130 180 260 310

221388

FLUE WRAPPER AND VENTER COMPONENTS

20 - Flue Wrapper Side Gaskets

21 - Flue Wrapper Top/Btm Gaskets

22 - Flue Wrapper Assy

23 - Venter Inlet Gasket

24 - Venter Housing Assy

Figure 2. Flue Wrapper and Venter Components (Refer to Table 3)

Disconnect Switch

Door Switch

(8) Screws, PN 221178

25 - Venter Motor and Wheel Assy (see exploded view)

P-UEAS (11-18) PN269865R7

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FLUE WRAPPER AND VENTER COMPONENTS—CONTINUED

Exploded View of Code 25: Venter Motor and Wheel Assembly

25F/25G

25D

Stainless Nut, (4) PN 221179

25E

25B

(size 130 only)

25C

25F

25A

“B”

25A

Dimension B

Size Inches mm

130 0.312 7.9

180 0.5 12.7

260 0.5 12.7

310 0.5 12.7

25H

25C/D

25J

Figure 3. Venter Motor and Wheel Assembly (Refer to Table 3)

Table 3. Flue Wrapper and Venter Components

Unit Size

Code Component

20 Flue wrapper side gaskets 221198 (2) 221199 (2)

Flue wrapper top gasket 221200

Flue wrapper bottom gasket 221200

22 Flue wrapper 220823 220824 23 Venter housing gasket 221164 24 Venter housing assembly (includes Code 24A and Code 3, vent temperature limit switch 221520

24A Static pressure tap 116043

25 Venter motor and wheel assembly 222648 221240 25A Venter motor, A.O. Smith F48Y67A13 221159 25B Flat washer 204323 (4) 25C Motor plate 221162 25D Motor plate gasket 221163 25E Slinger (smooth side must be ﬂush against motor plate) 221861 25F Venter wheel 221172 25G Venter wheel housing 221173 25H Shaft protector gasket 221161

25J Shaft protector 221160

25K Setscrew 222077

*Quantity is one (1) unless otherwise indicated.

130 180 260 310

PN*

P-UEAS (11-18) PN269865R7

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31 - Fan Blade

FAN AND MOTOR COMPONENTS

33 - Isolator

Setscrew

35 - Flat Washer 36 - Nut

32 - Fan Guard

34 - Motor Spacer

30 Fan Motor

Dimension A

Size inches mm

130 2-3/8 60 180 2-3/8 60 260 251 310 1-3/8 35

Figure 4. Fan and Motor Components (Refer to Table 4)

Table 4. Fan and Motor Components

Unit Size

Code Component

Fan motor, 115V 271461 (replaces 196246) 196247

Fan motor,115V, AL14 (enclosed) 196824 196825

Fan blade**

32 Fan guard 170084 170086 33 Isolator 196348 (4) 34 Motor spacer — 204321 35 Flat washer 204323 (4) 36 Lock nut 271462 (4) 216942 (4)

*Quantity is one (1) unless otherwise indicated. **Setscrew torque = 130 inch-pounds (±10 inch-pounds).

130 180 260 310

PN*

195680 195683 209121

Valve Code

(Refer to Serial Numbers)

Y2 Z7 Y3 Z8 6E

P-UEAS (11-18) PN269865R7

GAS CONVERSION KITS

Table 5. Natural Gas to Propane Conversion Kits

Unit Size

130 180 260 310

Kit PN

221442 221443 —

— 221444 221445

261647 261648 —

Page 8

44 - Burner Baffle

38 - DSI Electrode

42 - Burner Shield Assy

39 - Flame Sensor

43 - Burner Support

41 - Burner Body Assy

Screws, PN 195638

40 - Burner Inlet Plate

48 - Gas Valve

Manifold Assembly

45 - Orifice

46 - Orifice Adapter

47 - Pipe Nut

BURNER ASSEMBLY COMPONENTS

Figure 5. Burner Assembly Components (Refer to Table 6)

Code Component

38 DSI electrode 175272 39 Flame sensor 195292 40 Burner inlet plate 221165 221166 221167 221168 41 Burner body assembly 221476 195238 195241 195243 42 Burner shield assembly 195528 195529 195532 195534 43 Burner supports (4) 196598 44 Burner bafﬂe (2) 197238 N/A

46 Oriﬁce adapter 165701 194809 47 Pipe nut, 1/2-inch 165702 48 Natural gas valve 260603 196981

*Quantity is one (1) unless otherwise indicated.

Natural gas oriﬁce (marking = #3) 211851 — Natural gas oriﬁce (marking = 6.2MM) — 221263 — Natural gas oriﬁce (marking = 7.6MM) — 196894 — Natural gas oriﬁce (marking = 0) — 221264 Propane oriﬁce (marking = 3.3MM) 120415 — Propane oriﬁce (marking = 25) — 221265 — Propane oriﬁce (marking = 14) — 196902 — Propane oriﬁce (marking = 8) — 196903

Table 6. Burner Assembly Components

Unit Size

130 180 260 310

PN*

P-UEAS (11-18) PN269865R7

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MANUAL SHUTOFF VALVE

Header Gaskets

Figure 6. Manual Shuto󰀨 Valve—Same as Option CE1 (Refer to Table 7)

Table 7. Manual Shutoff Valves

Option Package

15971 15972

Component

130 180 260 310

Shutoff valve, 1/2-inch 196910 — Shutoff valve, 3/4-inch — 196911 Union, 1/2-inch 1224 — Union, 3/4-inch — 1101

Unit Size

HEAT EXCHANGER COMPONENTS

Code 51: Primary Heat Exchanger

51A - (2) Side

51B - (2) Top/Btm Header Gaskets

Figure 7. Heat Exchangers (Refer to Table 8)

Table 8. Heat Exchanger Components

Code Component

51 Primary heat exchanger assembly with drain assembly 221318 221319 221320 221321 51A Top/bottom header gaskets 221201 (2) 221202 (2) 51B Side header gaskets 221203 (2) 221204 (2) 51C Replacement HTEX drain kit 235368

52 Secondary heat exchanger assembly 221256 221257 221258 221259 52A Secondary heat exchanger header gasket 220804 220805 52B Collection box gasket 221187

*Quantity is one (1) unless otherwise indicated.

Code 52: Secondary Heat Exchanger

52A - Header

Gasket

52B - Collection

Box Gasket

Unit Size

130 180 260 310

PN*

P-UEAS (11-18) PN269865R7

Page 10

CONDENSATE DRAIN KIT (PN 235368) FOR REPLACEMENT HEAT EXCHANGERS

PN 105949)

Drain Stub

Drain Pipe Assembly (PN 284192)

Assembly (PN 221245)

(two (2) required)

1/2-inch PVC Elbow (

Figure 8. Condensate Drain Kit (Refer to Table 9)

Table 9. Condensate Drain Kit (PN 235368) Components

Component PN Quantity

Elbow, 1/2-inch PVC 105949 1

Drain stub assembly 221245 2 Drain pipe assembly 284192 1

CONDENSATE DRAIN KIT (PN 235368) INSTALLATION

Install the condensate drain kit as follows:

1. Turn off gas and power.

2. Remove old primary heat exchanger.

3. Remove drain assembly from secondary heat exchanger.

4. Install new primary heat exchanger.

5. Thread one drain stub assembly into half coupling on new primary heat exchanger.

6. Thread other drain stub assembly into half coupling on seconday heat exchanger.

7. Install 1/2-inch PVC elbow and drain pipe assembly using PVC cleaner and solvent.

8. Turn on gas and power and check for operation according to installation manual.

VENT/COMBUSTION AIR COMPONENTS

Codes 55A and 56A: Concentric Adapter Box

Codes 55B and 56B:

Silicone Sealing Ring

Code 55C: Bird Screen

Code 56C: Bird Guard

Figure 9. Vent/Combustion Air Components (Refer to Table 10)

Model UEAS

Codes 55G

and 56G:

4-inch PVC Cap

Code 56E: Combustion Air Inlet

Code 55D: Ring Guard

Code 56F: Rain Collar

P-UEAS (11-18) PN269865R7

Page 11

Table 10. Vent/Combustion Air Terminal Kits

Code Component PN Quantity

Code 55: Horizontal Kit (PN 221247, Same as Option CC6)

55A Concentric adapter box 221069 1 55B Sealing ring, silicone — 1 55C Bird screen, for exhaust outlet 221089 1 55D Ring guard, for air inlet 124940 4 55E Screw, #10-16 × 1/2-inch long, for attaching inlet air guard 37661 4 55F Spacer, for inlet air guard 221186 4 55G Condensate drain connection vent cap, 4-inch PVC 221091 1

Code 56: Vertical Kit (PN 221248, Same as Option CC2)

55A Concentric adapter box 221069 1 55B Sealing ring, silicone — 1 55C Bird guard 221215 1 55D Screw, #10 × 1/2-inch long, self-drilling, for bird guard 37661 2 55E Combustion air inlet 221250 1 55F Rain collar 221185 1 55G Condensate drain connection vent cap, 4-inch PVC 221091 1

NOTE: The following vent/combustion air components are for separated combustion: concentric

adapter box (codes 55A and 56A), silicone sealing ring (codes 55B and 56B), 4-inch PVC cap (codes 55G and 56G).

LOUVER ASSEMBLY COMPONENTS

Figure 10. Vertical Louvers—Same as Option CD1 (See Table 11)

Table 11. Louver Assembly Components

Option Package

201199 201201

Component

130 180 260 310

Louver frame top and bottom 197189 (2) 197190 (2) Louver frame side 197186 (2) 197188 (2) Screw, #8-18 × 3/8-inch long, AB point, slotted indented serrated hex washer head 195638 (20) Louver 196572 (8) 195315 (8) Compression spring 195046 (8)

P-UEAS (11-18) PN269865R7

Unit Size

PN (Quantity)

Page 12

NOZZLE COMPONENTS

Figure 11. Downturn Nozzles—Same as Option CD2, CD3, or CD4 (Refer to Table 12)

Table 12. Nozzle Components

Unit Size

Component

Option CD2 Package PN 201202 201204

slotted indented serrated hex washer head

Option CD3 Package PN 201205 201207

Nozzle section right side 197173 (2) 197175 (2) Nozzle section left side 197176 (2) 197178 (2) Nozzle section top 197170 (2) 197172 (2) Nozzle bracket 201708 (2) 201709 (2) Nozzle section bottom 196997 (2) 197179 (2) Screw, #8-18 × 3/8-inch long, AB point,

slotted indented serrated hex washer head

Option CD4 Package PN 201208 201210

Nozzle section right side 197173 (1) 197175 (1) Nozzle section left side 197176 (1) 197178 (1) Nozzle section top 197170 (1) 197172 (1) Nozzle bracket 201708 (2) 201709 (2) Nozzle section bottom 196997 (1) 197179 (1) Vertical louver 196572 (8) 195315 (8) Compression spring 195046 (8) Top louver support 197189 (1) 197190 (1) Bottom louver support 197189 (1) 197190 (1) Louver frame side 197186 (2) 197188 (2) Screw, #8-18 × 3/8-inch long, AB point,

slotted indented serrated hex washer head

130 180 260 310

PN (Quantity)

195638 (16)

195638 (30)

195638 (28)

P-UEAS (11-18) PN269865R7

Page 13

HANGER KIT COMPONENTS

Figure 12. Hanger Kit—Same as Option CK10 (Refer to Table 13)

Table 13. Hanger Kit Components

Unit Size

Component

Option CK10 Package PN 98511

Swivel connector assembly 17627 (4) Lockwasher, 3/8-inch 5197 (8) Nut, hex, 3/8-inch 1438 (4) NOTE: Hanger kit provides four-point suspension.

130 180 260 310

PN (Quantity)

THERMOSTAT COMPONENTS

Thermostat Thermostat

Cover

Figure 13. Thermostat and Cover—Same as Options CL1 and CM1 (Refer to Table 14)

Table 14. Thermostat Components

Unit Size

Component

Thermostat, single-stage, 24V, with fan switch (same as option CL1) 255350 Cover, thermostat, locking, 6 × 5 × 2-1/2 (inside), clear plastic (same as option CM1) 257464

130 180 260 310

P-UEAS (11-18) PN269865R7

Page 14

CABINET COMPONENTS

Control Side of

Sizes 130 and 180

Front

59 - Door Panel

Control Side of Sizes 260 and 310

59 - Door Panel

60 - Access Panel

65 - Front

Panel

66 - Left Panel

70 - Top

68 - Louver

69 Spring

Fan Side (Rear)

61 - Vent Panel

63 - Vent Block Cover

64 Fan

Panel

67 - Bottom Pan

70 - Top

62 - Vent Block Assembly

(block, pipe, and gasket)

Figure 14. Cabinet Components (Refer to Table 15)

P-UEAS (11-18) PN269865R7

Page 15

Table 15. Cabinet Components

Unit Size

Code Component

59 Door assembly 220833 220834 60 Access panel, above door — 220822 61 Vent panel assembly 220825 220826 62 Vent block assembly 221518

62A Vent block gasket, part of code 62 221516

63 Vent block cover assembly 221519 64 Fan panel 220759 220760 65 Front panel 201692 201694 66 Left panel 220753 220754 67 Bottom pan 220827 220828 68 Louver 195578 (5) 195578 (10) 69 Louver spring 195046 (5) 195046 (10) 70 Top panel 220755 220756 71 T-CORE3 logo 221183 73 Touch-up paint, cabinet, white, 11-oz spray can 201805 74 Paint, horizontal louver, maroon, 12-oz spray can 207432

*Quantity is one (1) unless otherwise indicated.

130 180 260 310

PN*

P-UEAS (11-18) PN269865R7

Page 16

Speciﬁcations and illustrations subject to change without notice or incurring obligations.

Reznor UEAS User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

REFERENCES

RATING PLATE

SERIAL NUMBERS

ELECTRICAL COMPONENTS

FLUE WRAPPER AND VENTER COMPONENTS

FAN AND MOTOR COMPONENTS

GAS CONVERSION KITS

BURNER ASSEMBLY COMPONENTS

MANUAL SHUTOFF VALVE

HEAT EXCHANGER COMPONENTS

CONDENSATE DRAIN KIT (PN 235368) FOR REPLACEMENT HEAT EXCHANGERS

VENT/COMBUSTION AIR COMPONENTS

LOUVER ASSEMBLY COMPONENTS

NOZZLE COMPONENTS

HANGER KIT COMPONENTS

THERMOSTAT COMPONENTS

CABINET COMPONENTS