Instructions / Assembly

ManualsBrandsRheem ManualsCommercial Electric Water HeatersCommercial PowerPack 30 Gal. 480 Volt 9 kW 3 Phase Electric ASME Tank Water Heater

Printed in USA

NOTICE: This water heater is designed for use in a commercial application and the installation and maintenance

of it should be performed by qualified, licensed service personnel. If the foregoing assumption is not appropri-

ate, then we recommend that you obtain and retain our Residential Use & Care Manual.

CALIFORNIA PROPOSITION 65 WARNING: This product contains chemicals known to the State of California to

cause cancer, birth defects or other reproductive harm.

AP11146-10 (05/13)

WITH INSTALLATION INSTRUCTIONS FOR THE CONTRACTOR

Commercial Electric Water Heater

USE & CARE MANUAL

LISTED

18G0

COMMERCIAL STORAGE

TANK WATER HEATER

The purpose of this manual is twofold: one, for the installing

contractor, to provide requirements and recommendations for

the proper installation and adjustment of the water heater;

and two, for the owner-operator, to explain the features, oper-

ation, safety precautions, maintenance and trouble shooting

of the water heater. This manual also includes replacement

parts information.

It is imperative that all persons who are expected to install,

operate or adjust this water heater read the instructions care-

fully so that they may understand how to do so.

Do Not Destroy this Manual. Please read carefully

and keep in a safe place for Future Reference.

Recognize this symbol as an Indication of

Important Safety Information!

Tank Type Models

Surface Mounted or Immersion Thermostats

Booster Models

Immersion Thermostats Only

Summary of content (24 pages)

PAGE 1
Commercial Electric Water Heater USE & CARE MANUAL LISTED COMMERCIAL STORAGE TANK WATER HEATER 18G0 WITH INSTALLATION INSTRUCTIONS FOR THE CONTRACTOR The purpose of this manual is twofold: one, for the installing contractor, to provide requirements and recommendations for the proper installation and adjustment of the water heater; and two, for the owner-operator, to explain the features, operation, safety precautions, maintenance and trouble shooting of the water heater.
PAGE 2
! General Safety Precautions Be sure to read and understand the entire Use & Care Manual before attempting to install or operate this water heater. Pay particular attention to the following General Safety Precautions. Failure to follow these warnings could result in serious bodily injury or death. Should you have any problems understanding the instructions in this manual, STOP, and get help from a qualified installer or service technician or the local utility.
PAGE 3
Introduction ! WARNING FOR THE BOOSTER MODELS A minimum clearance of 18 inches (457mm) on the right side of the Booster model is required for removal of the heating element(s) when required for service or inspection. Read and Review this entire Manual with special emphasis on the Installation Section (Pages 3 - 6) and Operation Section (Pages 7 - 8) prior to any installation work.
PAGE 4
Installation Water Shock Arrestor Temperature / Pressure Gauge Pressure Reducing Valve with By-pass SYSTEM SENTINEL Indicators Thermostat(s) Dial(s) Dishwasher Vacuum Relief Valve (If required by local codes) High Temp Limit Control Shut-off Valve Water Inlet Legs Circulation Return Line Check Valve 6” Air Gap (152mm) Relief Valve Discharge Line Open Drain Figure 1.
PAGE 5
Installation Storage Tank Temperature & Pressure Relief Valve Refer to Local Codes Hot Outlet Cold Water Inlet Recirculation Loop Temperature & Pressure Relief Valve (Not visible in this view) Refer to Local Codes Storage Tanks Shut-off Valve Recirculator Manifolds Circulator Control (Optional*) Branch Circuit from Electrical Distribution Panel Check Valve Air Gap 6” (152mm) Circulator* Vacuum Relief Valve (Not visible in this view) If required by local codes * Circulator may be wired to run cont
PAGE 6
40 25 55 35 75 45 95 55 110 65 145 85 165 95 185 105 220 125 275 160 325 190 360 210 NA 250 1 3 1 3 1 3 1 3 1 3 1 3 1 3 1 3 1 3 1 6 3 1 3 1 3 1 3 NA NA NA 3 1 3 NA NA NA 220 NA 180 315 165 285 140 235 110 190 95 160 85 145 75 125 55 95 50 80 40 65 30 50 20 35 20 240 Voltage NA NA NA NA NA NA 275 NA 245 NA 205 NA 165 NA 140 NA 125 NA 110 NA 85 NA 70 NA 55 NA 45 NA 30 15 277 170 NA 125
PAGE 7
Installation 7. WARNING ! CAUTION Tank MUST be full of water before power is turned on. Heating elements WILL BE DAMAGED if energized for even a short time while tank is dry. The water heater’s warranty does not cover damage or failure resulting from operation with an empty or partially empty tank. (Reference is made to the limited warranty for complete terms and conditions.) The presence of water in the piping and water heater does not provide sufficient conduction for a ground.
PAGE 8
Operation SAFETY PRECAUTIONS A. Do turn off power to water heater if it has been subjected to over heating, fire, flood or physical damage. ! CAUTION used for a long period of time (generally two weeks or more). B. DO NOT turn on water heater unless it is filled with water.
PAGE 9
Operation TO RESET HIGH TEMPERATURE LIMIT CONTROL: There is one thermostat that controls all heating elements. It is located behind the removable pad of glass fiber insulation in the control compartment. 160°F (71°C) MODELS: Adjust thermostat dial pointer, with a small screwdriver, to the desired water temperature setting (refer to Fig. 4). THERMOSTAT PROTECTIVE COVER SHOULD NOT BE REMOVED. The thermostat is adjustable from a “LOW” to “HI” setting.
PAGE 10
Maintenance Properly maintained, this water heater will provide years of dependable, trouble free service. It is strongly suggested that a regular routine maintenance program be established and followed by the owner. It is further recommended that a periodic inspection of the relief valve and electrical controls be made by service personnel qualified in electric appliance repair.
PAGE 11
Maintenance 7. SEASONAL OPERATION — If the water heater is to remain idle for an extended period of time (60 days or more) the power to the heater should be turned off. The water heater and piping should be drained if they might be subjected to freezing temperatures. It is recommended that the water heater’s operation is thoroughly checked (by qualified personnel) before it is placed back in service. NOTE: Refer to “Hydrogen Gas Caution” in Safety Precautions Section on page 8. 8.
PAGE 12
Wiring Diagram: Surface Mounted Thermostat Models 6 3 17 14 ! 5 2 16 13 B R 6 A BLK G BL J W 16 R 17 W 18 CONNECTED TO RATED VOLTAGE ON TRANSFORMER R 5 3 AMP CLASS G FUSES R BLK C R 4 CONNECTED TO TERMINAL 1 ON THERMOSTAT BL R 3 R BLK R 2 M W D CONTROL TRANSFORMER 4 K R I BL R H W 1 15 BLK BLK BLK 14 15 480 277 240 208 C 120 120 THREE PHASE CONNECTIONS 1 2 3 N BL BLK L 13 18 1 BLK GRD ALL RED FIELD WIRING BLOCK ALL BLACK SINGLE PHASE CONNECTI
PAGE 13
Wiring Diagram: Surface Mounted Thermostat Models -G Models 9 Element Configuration Only Q BL 18 CONTROL TRANSFORMER 15 6 3 ! 29 26 17 14 5 2 B 28 25 16 13 BL H BL CONNECTED TO TERMINAL 1 ON THERMOSTAT 3 AMP CLASS G FUSES R BLK C 4 1 L D 480 277 240 208 C 120 120 27 THREE PHASE CONNECTIONS 1 2 3 GRD ALL RED FIELD WIRING BLOCK ALL BLACK SINGLE PHASE CONNECTIONS 30 A BL K BLK P BL G BL R R R R 29 54 53 54 33 19 20 21 33 7 8 9 10 12 22 31 24 34 CO
PAGE 14
Wiring Diagram: Immersion Thermostat Models GRD F 2 CONNECTED TO RATED VOLTAGE ON TRANSFORMER B R 480 277 240 208 C 120 120 ! ALL RED FIELD WIRING BLOCK CONTROL TRANSFORMER ALL BLACK SINGLE PHASE CONNECTIONS -G Models 1 Element Configuration 3 AMP CLASS G FUSES ! D 1 C A R BLK BLK G H BL W D 2 R BLK 1 R ! CONTACTORS R COPPER CONDUCTORS 30 AMP CLASS G FUSES ! 7 ELEMENTS R LIMIT R BLK FUSE BLOCKS F E 8 R ! THERMOSTAT 7 8 ! THERMOSTAT AND HIGH LIMIT CONTROLS OPER
PAGE 15
Wiring Diagram: Immersion Thermostat Models -G Models 3 & 6 Element Configurations Only Up to 30 Amp Fuses 17 14 5 3 AMP CLASS G FUSES B 16 13 R 4 R R 5 6 BLK J W 16 R R BLK G BL 17 18 R 4 C BL R 3 D A R 2 M W R 1 K R I W BL R H CONNECTED TO RATED VOLTAGE ON TRANSFORMER F 2 BL BLK 15 BLK BLK BLK ! 6 3 BLK N 14 15 480 277 240 208 C 120 120 THREE PHASE CONNECTIONS 1 2 3 ALL RED L 13 18 1 BLK GRD ALL BLACK FIELD WIRING BLOCK SINGLE PHASE CONNECTIO
PAGE 16
Wiring Diagram: Immersion Thermostat Models -G Models 3 & 6 Element Configurations Only 35 Amp Fuse 14 5 B 16 13 R 4 4 R 5 6 C BLK BL J W 16 R 480 277 240 208 C 120 120 R BLK G BL 17 R 3 D A R 2 M W R 1 K R I BL R H CONNECTED TO RATED VOLTAGE ON TRANSFORMER F 3 AMP CLASS G FUSES 2 W BLK 15 BLK BLK BLK 17 BL R 35 AMP CLASS G FUSES ! 6 3 BLK N 14 15 18 R THREE PHASE CONNECTIONS 1 2 3 ALL RED L 13 18 1 BLK GRD ALL BLACK FIELD WIRING BLOCK SINGLE PHA
PAGE 17
Wiring Diagram: Immersion Thermostat Models -G Models 9 Element Configuration Only 18 15 CONTROL TRANSFORMER 6 3 D 29 26 17 14 5 28 B 16 13 CONNECTED TO HIGH LIMIT 3 AMP CLASS G FUSES 2 25 ! 480 277 240 208 C 120 120 27 THREE PHASE CONNECTIONS 1 2 3 GRD ALL RED FIELD WIRING BLOCK ALL BLACK SINGLE PHASE CONNECTIONS 30 R 4 A 1 C BLK BLK CONNECTED TO RATED VOLTAGE ON TRANSFORMER R R R R 17 18 W 28 R 29 30 BL W D ! E ! R CONTACTORS R 16 G J R 6 W BL R 5 R
PAGE 18
Wiring Diagram: Immersion Thermostat Models with Staging 3 Stage -GS Models GRD 18 15 CONTROL TRANSFORMER 6 3 ! 29 26 17 14 5 3 AMP CLASS G FUSES 2 28 25 B 16 13 CONNECTED TO HIGH LIMIT D R 4 A 1 C BLK G Y R R R 17 R 18 28 R 29 W CONTACTORS 30 D ! E ! R R 16 R 6 J W R 5 R 4 R W R 3 M W R 2 BLK 1 BLK 15 I W BLK 14 BLK 13 BLK 27 BLK 26 BLK BLK 25 N W BLK S BL BL R H R BL BLK BL R V 480 277 240 208 C 120 120 27 THREE PHASE
PAGE 19
Wiring Diagram: Immersion Thermostat Models with Staging GRD BL V I W 6 CONTROL TRANSFORMER 3 ! 17 16 14 5 2 4 CONNECTED TO HIGH LIMIT 3 AMP CLASS G FUSES B 13 D 1 R A C BLK BL H N 15 G M W 480 277 240 208 C 120 120 18 THREE PHASE CONNECTIONS 1 2 3 ALL RED FIELD WIRING BLOCK ALL BLACK SINGLE PHASE CONNECTIONS 2 Stage -GS Models BLK BL J W W D ! R R 17 18 CONTACTORS R BL 43 20 44 R R R R R R BLK 7 8 9 10 11 12 22 23 24 49 50 51 40 41 42 46
PAGE 20
Wiring Diagram: Immersion Thermostat Models -G Models R 28 25 16 14 5 120 120 C 208 CONTROL TRANSFORMER CONNECTED TO RATED VOLTAGE ON TRANSFORMER 2 D CONNECTED TO 13 3 AMP CLASS G FUSES 4 H K W I M R V 2 3 4 5 6 16 17 18 28 29 30 40 41 42 R R R R R R R R R R R R R R J BL 1 15 G BL R BL W R BL T W BK BL P W C BK BK BL D R B R A BK 1 W R R 3 BK 14 BK 13 27 6 HIGH LIMIT 37 N BL 26 17 15 277 29 2 THREE PHASE CONNECTIONS
PAGE 21
Wiring Diagram: Immersion Thermostat Models 4 Stage -GS Models 6 5 4 1 C G 18 28 30 40 R R R 29 W 41 BL R K BL F R CC X 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 BL U BL LIMIT 4 35 AMP CLASS G FUSES ELEMENTS 45 21 44 46 43 48 31 36 11 35 32 34 20 22 8 10 12 23 9 11 22 24 34 35 36 46 47 R R R R R R R R
PAGE 22
Wiring Diagram: Immersion Thermostat Models -G Models R 28 25 16 14 5 120 120 C 208 CONTROL TRANSFORMER CONNECTED TO RATED VOLTAGE ON TRANSFORMER 2 13 D CONNECTED TO 3 AMP CLASS G FUSES 4 H K W I M R V 2 3 4 5 6 16 17 18 28 29 30 40 41 42 R R R R R R R R R R R R R R J BL 1 15 G BL R BL W R BL T W BK BL P W C BK BK BL D R B R A BK 1 W R R 3 BK 14 BK 13 27 6 HIGH LIMIT 37 N BL 26 17 15 277 29 2 THREE PHASE CONNECTIONS
PAGE 23
Wiring Diagram: Immersion Thermostat Models 4 Stage -GS Models 6 5 4 1 C G 28 18 30 40 R R R 29 W 41 BL R 42 BL F R CC X 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 BL U BL LIMIT 4 35 AMP CLASS G FUSES ELEMENTS 45 21 44 46 43 48 31 36 11 35 32 34 20 22 8 10 12 23 9 11 22 24 34 35 36 46 47 R R R R R R R R
PAGE 24