Hatco POWERMITE PMG-100 Guide

POWERMITE®GAS BOOSTER HEATER
INSTALLATION, OPERATING, SERVICE AND PARTS MANUAL
MODEL: PMG-100 & PMG-200
I&W #07.05.055.00
- Do not store or use gasoline or other
flammable vapors and liquids in the
vicinity of this or any other appliance.
- WHAT TO DO IF YOU SMELL GAS:
•Do not try to light any appliance.
•Do not touch any electrical switch;
do not use any phone in your building.
•Immediately call your gas supplier
from a neighbor’s phone. Follow the
gas supplier’s instructions.
•If you cannot reach your gas supplier,
call the fire department.
- Installation and service must be
performed by a qualified installer,
service agency or the gas supplier.
- Ne pas entreposer ni utiliser d’essence
ou ni d’autres vapeurs ou liquides
inflammables à proximité de cet
appareil ou de tout autre appareil.
- QUE FAIRE SI VOUS SENTEZ UNE
ODEUR DE GAZ:
• Ne pas tenter d’allumer d’appareil.
• Ne touchez à aucun interrupteur; ne
pas vous servir des téléphones se
trouvant dans le bâtiment.
• Appelez immédiatement votre
fournisseur de gaz depuis un voisin.
Suivez les instructions du fournisseur.
• Si vous ne pouvez rejoindre le
fournisseur, appelez le service des
incendies.
- L’installation et l’entretien doivent être
assurés par un installateur ou un
service d’entretien qualifié ou par le
fournisseur de gaz.
WATER HEATERS FOR OTHER THAN RECREATIONAL VEHICLE INSTALLATION
ONLY
CHAUFFE-EAU POUR INSTALLATION AUTRE QUE DANS DES VÉHICULES DE
LOISIR UNIQUEMENT
WARNING: If the information in these
instructions is not followed exactly, a fire or
explosion may result causing property
damage, personal injury or death.
AVERTISSEMENT: Assurez-vous de
bien suivre les instructions données dans
cette notice pour réduire au minimum le
risque d’incendie ou d’explosion ou pour
éviter tout dommage matériel, toute
blessure ou la mort.

Form No. PMG-100/200M-0805 i
CONTENTS
Record the model number, serial number
(identification plate located on the lower right hand
side, front corner of the unit), voltage and purchase
date of your Powermite®Gas Booster Heater in the
spaces below. Please have this information
available when calling Hatco for service assistance.
Model No. ________________________________
Serial No. ________________________________
Voltage __________________________________
Date of Purchase __________________________
Business 8:00 a.m. to 5:00 p.m.
Hours: Central Standard Time
(Summer Hours: June to September –
8:00 a.m. to 5:00 p.m. C.D.T.
Monday through Thursday
8:00 a.m. to 2:30 p.m. C.D.T. Friday)
Telephone: [phone]
Fax: [phone] (Parts & Service)
[phone] (International)
Additional information can be found by visiting our
web site at www.hatcocorp.com.
24-Hour 7-Day Parts & Service
Assistance available in the
United States and Canada
by calling [phone].
INTRODUCTION
Hatco Powermite Gas Booster Heaters are
instantaneous fin tube type heaters designed to
boost the temperature of regularly available hot
water, usually 110°F to 150°F (43°C to 66°C) up to
180°F (82°C). Water at 180°F (82°C) can be used
as sanitizing rinse water in commercial dishwashers
in accordance with Health Codes and National
Sanitation Foundation Standard #5.
The Hatco Gas Booster Heater is design certified
by CSA International and tested under the
requirements of the American National Standard,
ANS Z21.10.3*CSA 4.3-2001, Current Edition.
All Hatco Gas Booster Heaters are factory
pre-plumbed and pre-wired to allow for easy
installation. The control compartment area is
accessible from the front, which permits easy
installation, even when near other equipment.
Hatco Gas Booster Heaters are quality built for long
life and rugged dependability. Dependability of the
booster heater is preserved through proper, safe
installation and operation.
This manual provides the installation, safety and
operating instructions for the Powermite Gas
Booster Heater. We recommend all installation,
operating and safety instructions appearing in this
manual be read prior to installation or operation of
your Hatco PMG-100 or PMG-200 Gas Booster
Heater. Safety instructions that appear in this
manual after a warning symbol and the words
WARNING or CAUTION printed in bold face are very
important. WARNING means there is the
possibility of serious injury or death to yourself or
others. CAUTION means there is the possibility
of minor or moderate injury. CAUTION without the
symbol signifies the possibility of equipment or
property damage only.
Hatco Gas Booster Heaters are a product of
extensive research and field testing. The materials
used were selected for maximum durability,
attractive appearance and optimum performance.
Every unit is thoroughly inspected and tested prior to
shipment.
Important Safety Instructions............Front Cover
Important Owner Information...............................i
Introduction ...........................................................i
Model Description................................................1
All Models........................................................1
System Overview .................................................1
Specifications.......................................................2
Dimensions......................................................3
Booster Heater Sizing Chart...........................4
Installation ............................................................7
General............................................................7
Plumbing........................................................11
Gas................................................................15
Electrical........................................................18
Venting ..........................................................19
Operation............................................................22
Start-Up Procedures......................................22
Maintenance .......................................................24
Wiring Diagram...................................................29
Replacement Parts List .....................................30
Hatco Limited Warranty.....................................32
Authorized Parts Distributors............Back Cover
IMPORTANT OWNER INFORMATION

Form No. PMG-100/200M-0805
1
MODEL DESCRIPTION
The Hatco Powermite Gas Booster Heater is
designed to maintain a temperature of 180°F
(82°C) water required for the rinse cycle of a
commercial dishwasher. An inlet water temperature
of at least 110°F (43°C) will produce optimum
results (See Capacity Chart and Booster Heater
Sizing Chart in SPECIFICATIONS).
After the necessary power, water and gas
connections are completed, start the unit by turning
on the toggle switch located on the lower front base.
The water circulating pump will start at this time.
Providing the operating and safety controls are
satisfied, the ignition module will begin a 20 second
safety pre purge, next it will energize the spark
igniter and turn on the gas for the pilot. The igniter
will spark for about 90 seconds or until proof of fire.
If there is a confirmed pilot fire, and the water
temperature is below the setpoint, the unit will go
into full burn. The unit will stay in full burn until the
desired setpoint temperature is met, then the burner
will shut off. During standby periods of limited use,
the burner will cycle on only to replace standby
water temperature loss. If for some reason the unit
did not ignite there is an automatic 5 minute delay
before the unit attempts to ignite again.
If the unit overheats above the setpoint temperature,
the safety high limit will open, shutting down the
burner, locking out the controller, and turning on the
alarm pilot light. In order to reset the unit, turn the
unit off and depress the reset button on the
appropriate high limit switch, the tank high limit is
located behind front panel on the left hand side of
the vertical control panel. The heat exchanger high
limit is located on the front of the heat exchanger.
The switches will not reset until the temperature has
dropped to a safe level. This unit must remain off for
at least 10 seconds before it can be restarted.
NOTE: The operating thermostat control is factory
preset at 190°F (88°C).
NOTE: The circulator pump will stay on as long as
the toggle switch is in the ON position.
SYSTEM OVERVIEW
ALL MODELS
Water enters the booster heater at the inlet water
connection and flows into the stainless steel tank. It
then is pumped through the finned tube heat
exchanger where it is heated to the proper
temperature. The heated water then returns back to
the top half of the stainless steel tank for supply to
the dishwashing machine. Water that is not
immediately used by the dishwashing machine is
recirculated through the heat exchanger by the
water pump.
This system is designed to assure the availability of
the proper temperature water at the heater outlet.
All Hatco booster heaters are warranted to be free
of defects in material and workmanship under
normal use and service, and when installed in
accordance with factory recommendations.
NOTE: Hatco Booster Water Heaters are approved
for use with commercial dishwashers only.

Form No. PMG-100/200M-0805 2
SPECIFICATIONS
Type: Gas-fired, instantaneous recirculating booster heater with accumulator for use with
door type dishwashers. Unit is floor mounted.
Capacity: PMG-100: Input 105,000 BTUs/Hour. Output 84,800 BTUs/Hour = 24.8 kW
PMG-200: Input 195,000 BTUs/Hour. Output 156,000 BTUs/Hour = 45.7 kW
Fuel: Natural gas @ 5 iwc or Propane @ 11 iwc – minimum inlet gas pressure.
Operating
Water Pressure: 150 PSI max. Relief valve set at 150 PSI, 210°F (99°C).
Power: Supply 120 VAC, 15 amp service (unit uses 3.0 amps @ 120 volts).
Ignition: Electronic spark pilot with flame proofing by rectification.
Temperature Control: Electronic, temperature control probe/microprocessor based. Factory preset at
190°F (88°C).
Safety Systems: Energy cut off devices include manual reset heat exchanger high limit and manually
reset tank high limit. Redundant gas solenoid valve with integral regulator.
Temperature/Pressure relief valve on tank.
Fluing: Direct – combustion air enters bottom, flue gases exit right side or back at top of
unit.
Vent: Forced draft system with 4" (102 mm) diameter vent pipe adapter.
Pump: Recirculating with bronze housing.
Connections: Gas – 3/4" NPT, Water – 3/4" NPT, Electric – 120 VAC, 15 Amp.
Ship Weight: PMG-100: 155 pounds (70 kg) dry.
PMG-200 195 pounds (89 kg) dry.
NOTE: Capacity is reduced @ altitudes above 2000 feet (610 m). See HIGH ALTITUDE INSTALLATION &
OPERATION section for sizing considerations.
WATER TEMPERATURE RECOVERY TABLE - FAHRENHEIT
INPUT MBH Gallons per Hour (GPH) at Indicated Temperature Rise (F°)
MODEL (1,000 BTU/HR) 30° 40° 50° 60° 70°
PMG-100 105 321 241 193 161 138
PMG-200 195 602 452 361 301 258

Form No. PMG-100/200M-0805
3
SPECIFICATIONS
DIMENSIONS
Figure 1. Top View
Straight out duct adaptor
shown. Replace with 90°
adaptor for other duct
configurations.
120-150°F (49-66°C)
Water Inlet
180°F (82°C) Water Outlet
6-1/16
2-1/4
19-5/8
6-1/16 Power switch
Power on lamp
Reset safety switch lamp
T/P relief valve may
be field installed at
side or rear
Unit may be adapted in
field with supplied parts
for side exhaust exit.
17
7-3/16
19-5/8
6-1/4
Ø7/8 hole for
1/2" conduit
Primary exhaust
exit location at rear
6-1/4
13
B
31-1/4 25-3/4 25-7/8
11-1/16
1-13/16
6-5/16
25-13/16
Gas Inlet
5-3/4
20-3/4
11-1/8
14-1/2
A
Model A DIM. B DIM.
PMG-100 27-7/16 2-15/16
PMG-200 35-15/16 5-11/16
NOTE: Dimensions listed are in inches.
NOTE: Overall Dimensions PMG 100: 27-1/2" W x 20-3/4" D x 31" H (699 x 527 x 787 mm)
PMG 200: 36" W x 20-3/4" D x 31" H (914 x 527 x 787 x mm)

Form No. PMG-100/200M-0805 4
SPECIFICATIONS
BOOSTER HEATER SIZING CHART
GAS
POWERMITE®BOOSTER†
Dishwasher Model Number Temperature Rise
40°F (22°C) 70°F (39°C)
ADAMATION CSL-1390, CA-2, CA-3, CA-4, SLAP 44, CA, CA-1 . . . . . . . . . . . . .PMG-200 . . . . . . .(2)PMG-200
BLAKESLEE Series “R & “F”-CC, -EE, -LL, -MM, -LLL, -MMM, -PCC,
-PEE, -PLL, -PMM (multi-tank) with suffix “LC” . . . . . . . . . . . . . . .PMG-200 . . . . . . .PMG-200/100
Series XF-LL, XF-PLL, XF-MM, XF-PMM, XF-EEE,
XF-LLL, XF-MMM, (Multi-tank) with suffix “LC” . . . . . . . . . . . . . . .PMG-200 . . . . . . . . . . .---
DD-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PMG-100 . . . . . . . .PMG-200
Series R-L, R-PL, R-M, R-PM, F-L, F-PL, F-M, F-PM (single tank) .PMG-200 . . . . . . .(2)PMG-200
Series XF-PEE, XF-PLL, XF-PMM, XF-EEE, XF-LLL, XF-MMM
(multi-tank) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PMG-200 . . . . . . .(2)PMG-200
FA (Flight-A-Round) and RA (Rack-A-Round) use comparable “F” listing.
CHAMPION D-H1C, D-H1TC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .--- . . . . . . . . . . .PMG-100
66 WSPW, 44-WS, 66-WS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .--- . . . . . . . . . . .PMG-100
UC-CW6-WS, US-CW8-WS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PMG-100 . . . . . . . .PMG-200
44, 66 PW, 70FFPW, 80HDPW, 54, 76PW, 80FFPW,90HDPW 64,
90FFPW, 100HDPW, 86 PW . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PMG-100 . . . . . . . .PMG-200
40-KB, 40-KB-2-2, 40-KFWB, 40-KPRB, 40-KPRB-2-2,
40KPRB-2-3, 60-KB, 60-KB-2-2, 60-KFWB, 60-KFWB-2-2,
60-KPRB, 60-KPRB-2-3, 64KB, 64-KB Corner, 64-KPRB,
64-KPRB Corner, 64 Modular, 86 Modular . . . . . . . . . . . . . . . . . . .PMG-200 . . . . . . .PMG-200/100
44-KB, 44-KB Corner, 44-KPRB, 44-KPRB Corner, 54-KB,
54-KB Corner, 54-KPRB, 54-KPRB Corner, 44 Modular,
66 PW Modular, UC** Series 6’ Center, UC-C4 . . . . . . . . . . . . . . .PMG-200 . . . . . . .PMG-200/100
UC-CW4, UC-C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PMG-200 . . . . . . .PMG-200/100
UC**CW Series 6’ Center . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PMG-200 . . . . . . .(2)PMG-200
W-6-WS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PMG-200 . . . . . . .(2)PMG-200
CMA
DISHMACHINES
CMA-44H with tank heater, CMA-66H . . . . . . . . . . . . . . . . . . . . . . . .PMG-100 . . . . . . . .PMG-200
HOBART AM-12, AM-12C*, AM-14, AM-14C . . . . . . . . . . . . . . . . . . . . . . . . . . . . .--- . . . . . . . . . . .PMG-100
Opti-RinSe C44A, CRS-66A, CCS-66A, CPW-80A, C54A,
CRS-76A, CCS-76A, CPW-90A, C64A, CRS-86A, CCS-86A,
CPW-100A, C-88A, CRS-110A, CCS-110A, CPW-124A . . . . . . . .PMG-100 . . . . . . . .PMG-200
C-54A, CRS-76A, CPW-90A, CCS-76A . . . . . . . . . . . . . . . . . . . . . .PMG-200 . . . . . . .PMG-200/100
C-44A, CRS-66A, CCS-66A, CPW-80A, C-64A, CRS-86A,
CCS-86A, CPW-100A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PMG-200 . . . . . . .PMG-200/100
C-88A, CRS-110A, CPW-124A, CCS-110A . . . . . . . . . . . . . . . . . . .PMG-200 . . . . . . .PMG-200/100
Opti-RinSe C44AW, CRS-66AW, CCS-66AW, CPW-80AW . . . . . . . . . .--- . . . . . . . . . . .PMG-100
C-44AW, CRS-66AW, CPW-80AW, CCS-66AW . . . . . . . . . . . . . . . .PMG-100 . . . . . . . .PMG-100
C-44, CRS-66, CPW-80 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PMG-200 . . . . . . .PMG-200/100
C-54, CRS-76, CPW-90 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PMG-200/100 . . . . .(2)PMG-200
C-64W, CRS-86W, CPW-100W, C-88W, CRS-100W,
CPW-124W, CCS-86W . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PMG-100 . . . . . . . .PMG-200
C-64, CRS-86, CPW-100C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PMG-200 . . . . . . .PMG-200/100
FT800W, FT-900W . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PMG-200 . . . . . . . .PMG-200
FT-600, FT-700 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PMG-200/100 . . . . .(2)PMG-200
FT800 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PMG-200 . . . . . . .(2)PMG-200
FT-900, FT800S, FT-900S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PMG-200 . . . . . . .PMG-200/100
FRC and FR (Fast Rack Series) use comparable “C” line listing.

Form No. PMG-100/200M-0805
5
SPECIFICATIONS
BOOSTER HEATER SIZING CHART (CONTINUED)
GAS
POWERMITE®BOOSTER†
Dishwasher Model Number Temperature Rise
40°F (22°C) 70°F (39°C)
INSINGER Commander 18-5, 18-5H, Ensign 40-2 . . . . . . . . . . . . . . . . . . . . . . . . . .--- . . . . . . . . . . . .PMG-100
Admiral 44-4, 66-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PMG-100 . . . . . . . . .PMG-200
Speeder 64, 86-3, Century (all) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PMG-100 . . . . . . . . .PMG-200
Trac 321, Trac 321-2/RPW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PMG-100 . . . . . . . . .PMG-200
Trac 878 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PMG-100 . . . . . . . . .PMG-200
Clipper (all), R106-2, Super 106-2 . . . . . . . . . . . . . . . . . . . . . . . . . . .PMG-100 . . . . . . . . .PMG-200
Defender . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PMG-200 . . . . . . . . . . . .---
Master (all) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PMG-200 . . . . . . . . . . . .---
CA-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PMG-200 . . . . . . . . . . . .---
For outdated models, consult factory for correct booster.
JACKSON 44CE*, 66 CERPW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PMG-200 . . . . . . . . . . . .---
54CE, 76 CERPW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PMG-200 . . . . . . . . . . . .---
64CE, 86 CERPW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PMG-200 . . . . . . . . . . . .---
100 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PMG-100 . . . . . . . . . . . .---
150 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .--- . . . . . . . . . . . .PMG-100
AJ-44, AJ-66, AJ-80, WH-44, ES-4400, ES-6600
(ECOLAB/JACKSON) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PMG-100 . . . . . . . . .PMG-200
AJ-54, AJ-76, AJ-90 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PMG-200 . . . . . . . . . . . .---
AJ-64, AJ-86, AJ-100 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PMG-100 . . . . . . . . .PMG-200
*Model #44CE w/SN1999 or below requires larger booster than listed.
MEIKO K-44, K-66, K-80 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PMG-100 . . . . . . . . .PMG-200
K-54, K-76, K-90, K-64, K-86, K-100 . . . . . . . . . . . . . . . . . . . . . . . . .PMG-100 . . . . . . . . .PMG-200
METALWASH/INTEDGE
FW4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .--- . . . . . . . . . . . .PMG-100

Form No. PMG-100/200M-0805 6
SPECIFICATIONS
* Hobart Model AM-12 with serial no. 12-067-357 or below and model AM-12C with serial no. 12-067-537 or
below require slightly larger booster than listed. Or C Models with serial no. 85-1041605 or greater use
Opti-RinSe.
Shaded area indicates older models prior to Opti-RinSe.
† Powermite installations above 2,000 ft. (610 m) will reduce the above capacities and may require change
of pressure and/or orifices in certain models at time of install to meet IAS safety compliance. These
modifications are the responsibility of the installer. Consult “Installation and Operating Manual” for sizing
adjustments and orifice changes.
This selector chart is based on 40°F (22°C) and 70°F (39°C) temperature rises, 20 psi flow pressure, and minimum
rinse cycle timer setting in NSF listing.
All booster heaters are rated at 100% of the capacity of the dishwashers as recommended by the National Sanitation
Foundation. Where make-up water for wash tank is provided from final rinse supply, chart recommendations are
based upon this additional demand (not over 2 GPM) as required by NSF.
All sizings shown are that of the dishwasher manufacturers. Hatco Corporation is not responsible for incorrect sizing
applications.
GAS
POWERMITE®BOOSTER†
Dishwasher Model Number Temperature Rise
40°F (22°C) 70°F (39°C)
STERO SCT-44-10-LW, SCT-44-LW, SCT-66S-LW, SCT-76S-LW, SCT-90S-LW . . . . . . . . . .--- . . . . . . . . . .PMG-100
SC-1-2-4-LW, SC 1-6-4-LW, SC-2-4-LW, SC-5-2-4-LW, SC-5-6-4-LW,
SC-6-4-LW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PMG-100 . . . . . . .PMG-200
SCT-64, SCT-86S, SCT-94S, SCT-94SC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PMG-100 . . . . . . .PMG-200
SCT-108S, SCT-108SC, SCT-76, SCT-94SM . . . . . . . . . . . . . . . . . . . . . . . . . . .PMG-200 . . . . .PMG-200/100
SC-6-4, SCT-44, SCT-44-10, SCT-66S, SCT-76S, SCT-76SC, SCT-90S . . . . . .PMG-200 . . . . .PMG-200/100
SCT-120S, SCT-120SC, SCT-120SM, SCT-150SM . . . . . . . . . . . . . . . . . . . . . .PMG-200 . . . . .PMG-200/100
STW-110, SC-1-2-7-4, SC-1-6-3-4, SC-1-6-7-4, SC-2-7-4, SC-5-2-7-4,
SC-5-6-3-4, SC-5-6-7-4, SC-6-3-4, SC-6-7-4 . . . . . . . . . . . . . . . . . . . . . . . . . .PMG-200 . . . . .PMG-200/100
SC-1-2-4, SC-1-6-4, SC-2-4, SC-5-2-4, SC-5-6-4 . . . . . . . . . . . . . . . . . . . . . . . .PMG-200 . . . . . .(2)PMG-200
SCT-44-10-SC-1-3-4, SCT-44-10-3-4, SCT-44-SC-1-3-4, SCT-44-SC-3-4,
SCT-54-SC-1-3-4, SCT-54-SC-3-4, SCT-76S-SC-3-4 . . . . . . . . . . . . . . . . . . . .PMG-200 . . . . . .(2)PMG-200
STPC (Four Tank) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PMG-100 . . . . . . .PMG-200
STPCW (Four tank) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PMG-100 . . . . . . .PMG-200
STPC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PMG-200 . . . . .PMG-200/100
STPCW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PMG-200 . . . . .PMG-200/100
SCBT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PMG-200 . . . . .PMG-200/100
SF-2RA, SF-2DRA, SD-2RA, SDRA, SDRA-PACK . . . . . . . . . . . . . . . . . . . . . . . . . .--- . . . . . . . . . .PMG-100
SCT-54, SCT-76SM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PMG-200 . . . . . .(2)PMG-200
SCT-76, SCT-80, SCT-94, SCT-108, SCT-120 . . . . . . . . . . . . . . . . . . . . . . . . . .PMG-200 . . . . . .(2)PMG-200
U-31-A, U-31-AC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PMG-100 . . . . . . .PMG-200
U-31-A2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PMG-200 . . . . . .(2)PMG-200
SC-2-3-4, SC-5-2-3-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PMG-200 . . . . . . . . . .---
SC20-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .--- . . . . . . . . . .PMG-100
SC-2-8, SC-2-9, SC-1-2-8, SC-5-6-8, SC-6-8, SC-6-9, SC-1-6-8, SC-5-6-9,
SC-5-2-9, SC-1-6-9, SC-5-2-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PMG-100 . . . . . . .PMG-200
BOOSTER HEATER SIZING CHART (CONTINUED)

Form No. PMG-100/200M-0805
7
INSTALLATION
GENERAL
Code Requirements
Installation must be in accordance with local codes,
or in the absence of local codes, with the latest
edition of the National Fuel Gas Code,ANSI Z223.1,
the National Electrical Code, ANSI/NFPA 70.
Canadian installations should conform with CSA-
B149.1, Natural Gas and Propane Installation Code,
and CSA-C22.1 Electrical Code, and/or local
installation codes. {Les installations canadiennes
doivent se conformer aux CODES
D’INSTALLATION CSA-B149.1, Natural Gas and
Propane Installation Code, et CSA-C22.1 Electrical
Code, et/ou aux codes locaux d’installation.}
NOTE: In the Commonwealth of Massachusetts,
Hatco Booster Heaters shall be installed by a
licensed plumber and gasfitter.
NOTE: The Commonwealth of Massachusetts
requires that if a water treatment system is
installed in line with the Hatco Booster Heaters,
a water backflow protector shall also be
installed.
NOTE: If a check valve or water backflow protector
is installed and cannot be removed install a back
pressure relief valve, Hatco part number
03.02.039.00, set at 125 psi (862 kPa) on the
incoming line between the pressure reducing valve
and the inlet to the booster heater. Discharge must
be to open site drain.
For the most effective operation, install the Hatco
Gas Booster Heater as close as possible to the
dishwashing machine.
NOTE: Employ external recirculation if distance
between booster and dishwasher exceeds the
National Sanitation Foundation specifications of five
(5) feet (1.5 m).
WARNING
To assure proper operation and avoid a
possible unsafe condition, the booster heater
must be installed in a horizontal position with
the base parallel to the floor and the inlet
connection at the lowest point.
The Booster Heater must not be installed directly on
carpeting, but on top of a metal, wood (or
equivalent) panel extending beyond the full width
and depth of the booster heater by at least 3"
(76 mm) in any direction or, if the heater is installed
in an alcove, the entire floor must be covered by the
panel. The panel must be strong enough to carry the
weight of the heater when full of water.
Adequate front clearance is required to allow for
accessibility to the control compartment.
The booster heater should be located in an area
where leakage of the tank or connections will not
result in damage to the area adjacent to the heater
or to lower floors of the structure. When such
locations cannot be avoided, it is recommended that
a suitable drain pan, adequately drained, be
installed under the booster heater. The pan must not
restrict combustion air flow.
CAUTION
Unit is not weatherproof. For safe and proper
operation the unit must be located indoors
where the ambient air temperature is constant
and is a minimum of 70°F (21°C).

Form No. PMG-100/200M-0805 8
INSTALLATION
WARNING/CAUTION
The flow of air to the heater for combustion
and ventilation must not be obstructed. Air
vents on the bottom and side of the unit
should never be blocked. All panels should be
in place during normal operation for optimal
performance and safety.
WARNING/CAUTION
This unit is designed to vent to the outside or
into an open Equipment Hood, and is intended
for commercial food service water heating
only. IT IS NOT FOR RESIDENTIAL USE. See
VENT section of this manual.
WARNING/CAUTION
Flue gases exit top side or back of this unit and
must not be obstructed, specified clearances
must be maintained for safe operation. See
VENT section for vent piping alternatives.
Combustion/Ventilation Air
The booster heater must be located in an area
which allows for an adequate supply of air for proper
combustion and ventilation in accordance with
Section 5.3 and 7.2.2 of the National Fuel Gas Code
NFPA54/ANSI Z223.1 or applicable provisions of
the local building codes. Only a single booster
appliance may be installed in this manner.
Installations under the jurisdiction of Canadian
CSA-B149.1, Natural Gas and Propane
Installation Code, require a gas interlock tied
into the ventilation hood system. {Les
installations sous la juridiction des CODES
D’INSTALLATION canadiens CSA-B149.1,
Natural Gas and Propane Installation code,
nécessitent un verrouillage réciproque de gaz
raccordé au système de capot de ventilation.}

Form No. PMG-100/200M-0805
9
INSTALLATION
High Altitude Installation and Operation
Atmospheric conditions at elevations above 2000 ft.
(610 m) have an effect on the performance of most
gas fired products. For this reason, historical models
for altitude de-rating were developed for gas
appliances with atmospheric burners. The National
Fuel Gas Code, ANSI Z223.1 is an accepted model
which requires a de-rating of 4% per 1000 ft.
(305 m) elevation when no testing to the contrary
exists for that product. This could require modifying
the equipment and adjusting settings in the field to
achieve de-rating. Testing has shown this to be a
very conservative approach.
Manufacturers discourage unnecessary field
adjustments in order to maintain a level of
performance and quality designed into the product.
For these and other reasons, testing was
underwritten through CSA International to verify an
improved satisfactory performance with little or no
modification to effect input rate or control. The
following text and charts are a result of this testing
and should be used during application sizing and
installation.
• The PMG-100 can operate at better levels than
ANSI Z223.1 without manifold pressure setting
adjustments or orifice changes up to the 8500 ft.
(2593 m) elevation for both natural gas and liquid
propane gas units. Above this level only a slight
decrease in manifold pressure may be needed to
meet the approved BTU rate. This is shown in
the Altitude Summary chart. Also, note that GPH
capacity will be reduced and a guideline is given
as to the percent of sea level capacity expected.
For Canadian installations between 2000-4500 feet
(610-1370 m) de-rate unit by 10% to 94,500 BTU.
{Pour les installations au Canada entre 610 et 1370
m (2000 et 4500 pi) reclassifier l’appareil de 10% à
94 500 BTU.}
• PMG-200 will require orifice changes at levels
shown in the Altitude Summary chart. This
follows the 4% de-rating scheme outlined in
ANSI Z223.1 for both natural gas and liquid
propane gas. Also note that the GPH capacity
will be reduced and a guideline is given as to the
percent of sea level capacity expected.
For Canadian installations between 2000-4500 feet
(610-1370 m) de-rate unit by 10% to 175,500 BTU.
{Pour les installations au Canada entre 610 et
1370 m (2000 et 4500 pi) reclassifier l’appareil de
10% à 175 500 BTU}
Orifice Kits for altitude installations may be ordered
through Hatco Customer Service. Please call for
orifice sizing information.
Minimum Clearance Requirements: {Exigences quant au dégagement minimum:}
Floor Top Left Side Right Side Front Back
{Sol} {Dessus} {Côté gauche} {Côté droit} {Devant} {Derrière}
6"* (152 mm) 1" (25 mm) 2" (51 mm) 2" (51 mm) 20" (508 mm) 2" (51 mm)†
* Includes legs supplied with booster heater {Comrend pieds fournis avec appareil de chauffage auxiliare}.
† Minimum clearance of 8" (203 mm) from the side of the appliance where the vent is installed.

Form No. PMG-100/200M-0805 10
INSTALLATION
Altitude:
Ft. Above Sea Level 0-2000 2001-3000 3001-4000 4001-5000 5001-6000 6001-7000 7001-8000 8001-8500 8501-9500 9501-10500
(Meters) (0-610) (610-915) (915-1220) (1220-1525) (1525-1830) (1830-2135) (2135-2440) (2440-2593) (2593-2898) (2898-3203)
PMG-100
Approved
Input Rate* 105000 103363 101726 100089 98452 96815 95178 94360 90585 86811
Suggested Orifice
Size† #34DMS #34DMS #34DMS #34DMS #34DMS #34DMS #34DMS #34DMS #34DMS #34DMS
GPH Capacity
De-Rate• 1 0.98 0.97 0.95 0.94 0.92 0.91 0.90 0.86 0.83
PMG-200
Approved Input
Rate* 195000 171600 163800 156000 148200 140400 132600 128700 123552 118404
Suggested Orifice
Size† #35DMS #36DMS #36DMS #37DMS #37DMS #38DMS #39DMS #40DMS #41DMS #42DMS
GPH Capacity
De-rate• 1 0.88 0.84 0.80 0.76 0.72 0.68 0.66 0.63 0.61
LIQUID PROPANE GAS
Notes:
* This is the maximum allowable BTU rate certified by CSA. These are to be verified by the qualified gas
installer on site. Check Heat Value with local Gas Utility
† The first orifice size is the factory built unit.
The next sizes are shown at the altitudes where a change is required to allow pressure adjustments to
the approved input rates.
• This is a de-rate multiplier to use when sizing a gas booster for a given application.
Take this value and multiply it by the GPH found on the Hatco sizing chart to ensure it will provide the
capacity you need.
You can also use this value by dividing it into your capacity needs and take the resulting adjusted GPH to
the sizing chart to select a gas booster.
Altitude:
Ft. Above Sea Level 0-2000 2001-3000 3001-4000 4001-5000 5001-6000 6001-7000 7001-8000 8001-8500 8501-9500 9501-10500
(Meters) (0-610) (610-915) (915-1220) (1220-1525) (1525-1830) (1830-2135) (2135-2440) (2440-2593) (2593-2898) (2898-3203)
PMG-100 LPG
Approved
Input Rate* 105000 102937 100874 98810 96747 94684 92621 91589 87925 84262
Suggested Orifice
Size† #50DMS #50DMS #50DMS #50DMS #50DMS #50DMS #50DMS #50DMS #50DMS #50DMS
GPH Capacity
De-Rate• 1 0.98 0.96 0.94 0.92 0.90 0.88 0.87 0.84 0.80
PMG-200 LPG
Approved Input
Rate* 195000 171600 163800 156000 148200 140400 132600 128700 123552 118404
Suggested Orifice
Size† #50DMS #51DMS #51DMS #51DMS #51DMS #52DMS #52DMS #52DMS #53DMS #53DMS
GPH Capacity
De-rate• 1 0.88 0.84 0.80 0.76 0.72 0.68 0.66 0.63 0.61
Altitude Summary Publication Data for PMG Boosters
NATURAL GAS

Form No. PMG-100/200M-0805
11
INSTALLATION
PLUMBING
Components
SUPPLIED WITH UNIT OPTIONAL WITH UNIT SUPPLIED BY INSTALLER
• Temperature/Pressure • Back Pressure Relief • 3/4" Gate or Ball Valve
Relief Valve Valve • Drain Valve
• Blended Phosphate Water
Treatment System • 3/4" Unions
• Pressure Reducing Valve • 3/4" Piping
• Temperature/Pressure Gauges (2)
• Shock Absorber
• 3/4" Plug (installed)
Pressure And Temperature Relief Valves
For protection against excessive pressures and
temperatures in the booster heater, install
temperature and pressure protective equipment by
local codes. Hatco supplies valves constructed with
brass working parts and heat resistant silicone seat
discs for all booster heater models.
WARNING
Valves supplied by Hatco are designed for high
temperature commercial operation. Do not
substitute Hatco valves with valves designed
for domestic water heaters.
Temperature/pressure protective equipment
should not be less than a combination
temperature/pressure relief valve certified by a
nationally recognized testing laboratory that
maintains periodic inspection of the
production of this equipment and meets the
requirements for Relief Valves and Automatic
Shutoff Devices for Hot Water Supply Systems,
ANSI Z21.22*CSA 4.4. The
temperature/pressure relief valve must be
marked with a minimum set pressure not to
exceed the marked maximum working
pressure of the booster heater.
CAUTION
Do not use an anti-siphon or check valve on
the incoming water line.
CAUTION
FOR INSTALLING PRESSURE AND
TEMPERATURE RELIEF VALVES IN
ACCORDANCE WITH ANSI Z21.22*CSA 4.4.
Combination pressure and temperature relief
valves with extension thermostats must be
installed so that the temperature-sensing
element is immersed in the water within the top
6" (152 mm) of the tank. They must be installed
either in the hot outlet service line or directly in
a tank tapping. Combination pressure and
temperature relief valves that do not have
extension elements must be mounted directly
in a tank tapping located within the top 6"
(152 mm) of the tank, and shall be adequately
insulated and located so as to assure isolation
from flue gas heat or other ambient conditions
that are not indicative of stored water
temperature. TO AVOID WATER DAMAGE OR
SCALDING DUE TO VALVE OPERATION,
DRAIN PIPE MUST BE CONNECTED TO VALVE
OUTLET AND RUN TO A SAFE PLACE OF
DISPOSAL. Drain pipe must be as short as
possible and be the same size as the valve
discharge connection throughout its entire
length. Drain line must pitch downward from
the valve and terminate at least 6" (152 mm)
above the floor drain where any discharge will
be clearly visible. The drain line shall terminate
plain, not threaded, with a material serviceable
for temperatures up to 250°F (121°C) or
greater. Excessive length, over 15' (4.57 m), or
use of more than two elbows can cause a
restriction and reduce the discharge capacity
of the valve. No shut-off valve shall be installed
between the relief valve and tank, or in the
drain line. Valve lever must be tripped
periodically to ensure that waterways are clear.
This device is designated for emergency
safety relief and shall not be used as an
operating control. The valves are set to relieve
at 150 pounds pressure or when water
temperature reaches 210°F (99°C). Read tag on
valve for additional information.
NOTE: If a check valve or water backflow protector
is installed and cannot be removed install a back
pressure relief valve, Hatco part number
03.02.039.00, set at 125 psi (862 kPa) on the
incoming line between the pressure reducing valve
and the inlet to the booster heater. Discharge must
be to open site drain.

Form No. PMG-100/200M-0805 12
INSTALLATION
Temperature/Pressure Gauges
Hatco requires a temperature/pressure gauge be
installed in both the inlet and outlet lines to the
booster heater. These gauges provide an instant
visual check of the water temperature and pressure
entering and leaving the booster heater. The visual
check is helpful in eliminating unnecessary service
calls.
Install the temperature sensing bulb in the water
system. See Figures 2 and 3 for methods of
installation.
Figure 2. Installation Temperature/Pressure Gauge
Figure 3. Installation Temperature/Pressure Gauge
Pressure Reducing Valve
Proper operation of most dishwasher rinse nozzles
require available water flow pressure at the nozzle
to be 20 PSI.
If water pressure available to the booster heater
inlet is over 20 PSI, a pressure reducing valve with
bypass must be installed in the hot water supply line
to the booster heater.
The valve supplied by Hatco has a built-in high
pressure bypass which prevents excessive pressure
build-up as the booster heats up.
CAUTION
Pressure regulating valve must have a built-in
high pressure bypass.
Blended Phosphate Water Treatment System
Hatco requires that the Blended Phosphate Water
Treatment System supplied be installed with unions
on the incoming 3/4" water supply line after the
pressure reducing valve and before the booster
heater.
Cartridges supplied have a usage rating of 100,000
gallons of water. To ensure proper operation the
cartridges must be replaced when expired.
NOTE: Product failure caused by liming or sediment
buildup is not covered under warranty.
NOTE: The Commonwealth of Massachusetts
requires that if a water treatment system is
installed in line with the Hatco Booster Heaters,
a water backflow protector shall also be
installed.
NOTE: If a check valve or water backflow protector
is installed and cannot be removed install a back
pressure relief valve, Hatco part number
03.02.039.00, set at 125 psi (862 kPa) on the
incoming line between the pressure reducing valve
and the inlet to the booster heater. Discharge must
be to open site drain.

Form No. PMG-100/200M-0805
13
INSTALLATION
PLUMBING CONNECTIONS (See Figure 4)
Inlet
Hatco Booster Heaters are designed to be
connected with 3/4" pipe at the inlet pipe from the
primary water heater. Water temperature from the
primary water heater must be at least 110°F (43°C)
and should not exceed 160°F (71°C). Minimum
temperature differential between the inlet and outlet
temperature must never be less than 20°F (11°C).
NOTE: Refer to BOOSTER HEATER SIZING
CHART for application information.
Inlet line must be installed with a shut-off valve, a
full open gate or ball type valve, a 3/4" union,
together with the blended phosphate water
treatment system, pressure reducing valve set at
20 PSI (1.4 kg/cm2) flow pressure and a
temperature/pressure gauge supplied by Hatco.
NOTE: Do not run a cold ground water line to the
Booster Heater.
CAUTION
Incoming water supply in excess of 3 grains of
hardness per gallon ([GPG] .75 grains of
hardness per liter [GPL]) must be
treated/softened before being supplied to
booster heater(s). Water that contains over
3 GPG or .75 GPL will decrease efficiency and
reduce the operating life of the unit.
NOTE: Product failure caused by liming or
sediment buildup is not covered under
warranty.
CAUTION
To avoid development of a leak, do not back
up or loosen any water pipe fittings.
WARNING
Do not connect the heater directly to a boiler
or furnace coil or any other uncontrolled
temperature source. Such hook-up could
cause the thermostat to lose control and the
unit could overheat.
CAUTION
Incoming water supply to booster heater must
be a minimum of 20 psi, (1.4 kg/cm2) water
pressure less than 20 psi (1.4 kg/cm2) will
decrease the operating life of the recirculating
pump and the unit.
NOTE: Product failure caused by incoming
water pressure less than 20 psi (1.4 kg/cm2)is
not covered under warranty.

Form No. PMG-100/200M-0805 14
INSTALLATION
NOTE: Be sure water flows through the pressure
reducing valve in the proper direction. Check the
directional arrow. Valve will reduce pressure only
during flow conditions.
A 3/4" union fitting and a drain valve must also be
installed to allow for easy servicing.
The temperature/pressure relief valve must be
installed into one of two locations on the heater:
either the right side or the back of the unit. See
Figure 4 for exact locations.
To prevent water leakage and damage to the unit,
the location for the temperature/pressure relief valve
that is not used must be plugged. (One plug is
supplied by Hatco with the heater.) Both
temperature/pressure fittings MUST NOT be
plugged.
Figure 4. Plumbing Connections – PMG-100/200 Gas Booster Heaters
*Not Supplied With Booster Heater
Optional Accessory
z
†NOTE: The Commonwealth of Massachusetts
requires that if a water treatment system is
installed in line with the Hatco Booster Heaters, a
water backflow protector shall also be installed.

Form No. PMG-100/200M-0805
15
INSTALLATION
Figure 5. PMG-100/200 Gas Booster Heaters Connected in Series
Outlet
Using a 3/4" union and piping, connect the booster
heater water outlet to the dishwasher sanitizing
rinse pipe connection.
NOTE: Be certain the connection is made to the final
rinse and not to the wash tank.
Install a temperature/pressure gauge in outlet line.
Water temperature at outlet should be 180°F
(82°C).
NOTE: The temperature sensing element must be in
water stream. (See Figures 2 and 3.)
Shock Absorber
In areas of high water pressure, Hatco recommends
a shock absorber be installed in the outlet line as
close as possible to the dishwasher. The shock
absorber softens the water hammer caused by
automatic dishwasher valves. (See Figure 4.)
NOTE: Fill booster heater with water to test for
installation leaks. Leave the water in booster to
prevent pump damage in the event the electrician
should apply power.
GAS
Components
SUPPLIED WITH UNIT OPTIONAL WITH UNIT SUPPLIED BY INSTALLER
• Internal Gas Valve (installed) None • Gas Supply Line
• External Gas Shutoff Valve (loose) • Sediment Trap
• Union
• Vent System
†NOTE: The Commonwealth of Massachusetts
requires that if a water treatment system is
installed in line with the Hatco Booster Heaters, a
water backflow protector shall also be installed.
Optional Accessory
z
*Not Supplied With Booster Heater

CAUTION
Do not use Teflon tape on gas line pipe
threads. A flexible sealant suitable for use with
applied gas is recommended.
Form No. PMG-100/200M-0805 16
INSTALLATION
Gas Piping
The gas inlet pipe size is 3/4" NPT pipe thread fitting
to the gas valve. Provide an adequate size gas
supply line. The line should never be smaller than
3/4" NPT and should follow according to the gas
piping diagram below. The fitting is accessed
through the bottom of the case. (See Figure 6.)
Figure 6. Gas Hook-up and Pressure Tap Location and Piping Diagram.
NOTE: Gas line should be of the approved type for
use with natural gas or propane.
Gas line should be kept as short as possible, sized
to furnish the rated BTU, and installed in a way to
protect it from damage. Gas piping must be installed
in accordance with local plumbing codes including a
sediment trap, ahead of the heater gas controls and
a manual shut-off valve located outside the jacket.
NOTE: The internal gas valve is supplied with the
heater, the external manual gas valve supplied with
unit must be plumbed in by the installer. See Figure
6 for gas piping diagram.

Form No. PMG-100/200M-0805
17
INSTALLATION
WARNING/CAUTION
The gas used with this unit must be the type
specified on the spec plate on this unit. To
avoid personal injury or damage to the unit,
never use any other than the specified gas.
The heater and its gas connection must be leak
tested before placing the booster heater in
operation.
The booster heater and its individual shut-off
valve must be disconnected and isolated from
the gas supply piping system during any
pressure testing of the system at test
pressures in excess of 1/2 PSI (3.5 kPa.).
This appliance must be isolated from the gas
supply piping system by closing its individual
manual shutoff valve during any pressure
testing of the gas supply piping system at test
pressures equal to or less than 1/2 psig
(3.5 kPa).
Dissipate test pressure from the gas supply
line before re-connecting the heater and its
manual shut-off cock to the gas supply line.
FAILURE TO FOLLOW THIS PROCEDURE MAY
DAMAGE THE GAS VALVE. OVER
PRESSURED GAS VALVES ARE NOT
COVERED BY THE WARRANTY.
The heater and its gas connections shall be
leak tested before placing the appliance in
operation. Use soapy water or commercially
available fluid for leak test. DO NOT use open
flame to test for leaks.
The maximum inlet gas pressure must not exceed
the values shown above. The minimum gas
pressure listed is for the purposes of input
adjustment.
The manifold inside the heater is provided with a
pressure tap to measure the gas pressure. The
chart below lists the proper pressure amounts at the
manifold pressure tap when testing.
See Figure 6 for hook-up location and pressure tap
location.
Incoming Gas Pressure Specifications
Operating Pressure Specifications at Manifold
Inches Water Column
Gas Type Minimum Maximum
Natural 5.0 10.5
Propane/LP 11.0 13.0
Inches Water Column At Pressure Tap
Gas Type High Burn
Natural 3.5
Propane/LP 10.0

Form No. PMG-100/200M-0805 18
INSTALLATION
SUPPLIED WITH UNIT OPTIONAL WITH UNIT SUPPLIED BY INSTALLER
• 7/8" Hole Plugs None • 120 VAC, 60 Hz, 15 Amp
Single Phase Service
• Electrical Ground
ELECTRICAL
Components
The Hatco Gas Booster Heater operates on
120 VAC, 60 Hz, 15 amp, single phase service. All
internal electrical connections have been made at
the factory.
WARNING
If an external electrical source is utilized, the
appliance, when installed, must be electrically
grounded in accordance with local codes, or,
in the absence of local codes, with the National
Electrical Code, ANSI/NFPA 70, and CSA C22.1,
Electrical Code.
Electrical Connections
To connect the field wiring to the booster heater:
1. Remove the front access panel from the unit by
lifting up on the front panel and pulling upper
edge away from unit until it clears the lower
edge.
2. Open electrical enclosure at the lower left corner
of the base by removing two screws.
3. Bring power leads from a properly sized fused
disconnect switch or circuit breaker through 7/8"
hole provided on lower left hand side or bottom
of base. Connect supply lines to terminal block
provided. (See Figure 7.) Use copper wire only.
4. A green grounding terminal is provided internally.
An equipment grounding conductor must be
properly connected to the green terminal block.
(See Figure 7.)
1. Rotate Screwdriver into top opening.
2. Insert 3/8" Stripped Wire Lead.
3. Remove Screwdriver.
Figure 7. Terminal Block Wiring Instructions.
CAUTION
To avoid damage to both the pump and heater
assembly, do not turn on the power switch to
the heater until the installation is complete and
the booster water tank is filled with water and
all air in the system has been vented through
the dishwasher rinse nozzles.