Reznor UEAS User Manual

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.

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

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

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

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

+ 11 hidden pages

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