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Glass Lined Indirect Water Heater Installation & Operation Manual

Please read before proceeding

Installer – 

Read all instructions before 

installing.  Perform steps in the order given.

Have this indirect water heater serviced/
inspected by a qualified service technician, at 
least annually.

Failure to comply with the above could 
result in severe personal injury, death or 
substantial property damage.

Failure to adhere to the guidelines on this 
page can result in severe personal injury, 
death, or substantial property damage.

When servicing the indirect water heater –

• To avoid severe burns, allow the appliance to cool 
  before performing maintenance.

Indirect water heater operation –

• Should overheating occur or gas supply fail to shut off, 
 do not turn off or disconnect electrical supply to 
  circulator.  Instead, shut off the gas supply at a location 
  external to the appliance.

• Do not use this appliance if any part has been under 
  water.  The possible damage to a flooded appliance can 
  be extensive and present numerous safety hazards.  Any 
  appliance that has been under water must be replaced.

When calling or writing about the appliance 
– Please have the indirect water heater model 
and serial number from the indirect water 
heater rating plate.

Consider piping and installation when 
determining appliance location.

Any claims for damage or shortage in 
shipment must be filed immediately 
against the transportation company by the 
consignee.

Factory warranty (shipped with appliance) 
does not apply to appliances improperly 
installed or improperly operated.

If the information in this manual is not 
followed exactly, a fire or explosion may 
result causing property damage, personal 
injury or loss of life.

This appliance MUST NOT be installed in 
any location where gasoline or flammable 
vapors are likely to be present.

WHAT TO DO IF YOU SMELL GAS

• Do not try to light any appliance.
• Do not touch any electric 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.

 WARNING

 NOTICE

 WARNING

 WARNING

3

The following chart details the relationship of water temperature 
and time with regard to scald injury and may be used as a 
guide in determining the safest water temperature for your 
applications.

APPROXIMATE TIME / TEMPERATURE 

RELATIONSHIPS IN SCALDS

120°F

More than 5 minutes

125°F

1 1/2 to 2 minutes

130°F

About 30 seconds

135°F

About 10 seconds

140°F

Less than 5 seconds

145°F

Less than 3 seconds

150°F

About 1 1/2 seconds

155°F

About 1 second

• Installation and service must be performed by a qualified 
installer, service agency, or the gas supplier.

Hot Water Can Scald!

• 

Water heated to temperatures for clothes washing, dish washing, and other sanitizing needs can 

 

scald and cause permanent injury.

•  Children, elderly, and infirm or physically handicapped persons are more likely to be 

 

permanently injured by hot water.  Never leave them unattended in a bathtub or shower.  

 

Never allow small children to use a hot water tap or draw their own bath.

 

• 

If anyone using hot water in the building fits the above description, or if state laws or local 

 

 

codes require certain water temperatures at hot water taps, you must take special 

  precautions:

 

 

• 

Use lowest possible temperature setting.

 

 

•  Install some type of tempering device, such as an automatic mixing 

 

 

 

valve, at hot water tap or water heater.  Automatic mixing valve must be selected and 

 

 

 

installed according to valve manufacturer’s recommendations and instructions.

• 

Water passing out of drain valves may be extremely hot.  To avoid injury:

 

• 

Make sure all connections are tight.

 

• 

Direct water flow away from any person.

Protection Must Be Taken Against Excessive Temperature and Pressure!

--Installation of a Temperature & Pressure (T&P) relief valve is required.

Summary of Contents for GIT040

Page 1: ...ould result in severe personal injury death or substantial property damage WARNING Save this manual for future reference 100307474_2000559957_Rev B CAUTION The heat transfer medium must be water or other nontoxic fluid having a toxicity rating or class of 1 as listed in Clinical Toxicology of Commercial Products 5th edition The pressure of the heat transfer medium must be limited to a maximum of 3...

Page 2: ... READ BEFORE PROCEEDING 3 1 GENERAL INFORMATION Operating Restrictions 4 Single Wall Heat Exchanger 4 2 PRE INSTALLATION Locating the Tank 5 Recommended Clearances 5 3 BOILER SIDE PIPING Zone with Circulator to Aquastat 6 Zone with Valve to Aquastat 6 DHW Prioritization 6 Multiple Tank Connections Boiler Side 6 Table 3A Domestic Boiler Piping Connection Sizes 6 Piping Diagrams 7 10 4 DOMESTIC SIDE...

Page 3: ... DO IF YOU SMELL GAS Do not try to light any appliance Do not touch any electric 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 WARNING NOTICE WARNING WARNING 3 The following chart details the relationship of water temperature and time with ...

Page 4: ...119 2 1 1 2 MPT ON MODELS GIT080 119 PART NO A B C D E F WEIGHT FULL OF WATER LBS GIT040 3 3 4 9 1 4 21 5 8 29 15 16 39 23 5 8 527 GIT050 3 3 4 9 1 4 27 3 8 38 3 4 47 11 16 23 5 8 655 GIT080 2 3 4 9 1 4 31 7 8 54 1 2 63 9 16 23 5 8 876 GIT119 3 1 2 10 1 16 33 1 16 53 3 8 63 3 4 29 1 2 1279 Single wall heat exchanger Uniform plumbing code Single wall heat exchangers are permitted if they satisfy al...

Page 5: ...rface 2 Keep distance between boiler and water heater to a minimum to a reduce piping heat loss b provide minimal friction loss 3 Figure 1 1 on page 4 shows the weights of all the tanks filled with water Make sure that the location chosen for the tank is capable of supporting it This appliance must be placed where leakage from the relief valve leakage from the related piping or leakage from the ta...

Page 6: ...ATER INLET NPT WATER OUTLET NPT COIL CONNECTION NPT COIL LENGTH FT TUBE DIAMETER IN PRESSURE DROP FT HD 5 GPM 8 GPM 12 GPM 14 GPM GIT040 1 1 25 1 30 8 1 25 0 75 1 7 3 5 5 7 GIT050 1 1 25 1 36 5 1 25 0 85 1 8 3 6 5 8 GIT080 1 5 1 5 1 41 5 1 25 1 2 2 7 5 3 8 9 GIT119 1 5 1 5 1 67 3 1 25 1 4 3 4 6 6 11 3 Boiler side piping Figures 3 1 thru 3 4 show typical boiler side piping for several common situat...

Page 7: ...NK SENSOR AQUASTAT RELIEF VALVE Y STRAINER DRAIN FIELD SUPPLY HOT WATER OUT ANTI SCALD MIXING VALVE RECIRCULATION PUMP CHECK VALVE DRAIN ZONE 1 ZONE 2 ZONE 3 ZONE 4 Figure 3 1 Piping Diagram Zoned with Circulators Please note that these illustrations are meant to show system piping concept only the installer is responsible for all equipment and detailing required by local codes NOTICE 3 Boiler sid...

Page 8: ...SED NOT TO EXCEED 4 PIPE DIA OR A MAXIMUM OF 12 APART TANK SENSOR AQUASTAT RELIEF VALVE Y STRAINER DRAIN FIELD SUPPLY RECIRCULATION PUMP CHECK VALVE DRAIN INDIRECT ZONE 1 ZONE 4 ZONE 3 ZONE 2 Figure 3 2 Piping Diagram Zoned with Valves Please note that these illustrations are meant to show system piping concept only the installer is responsible for all equipment and detailing required by local cod...

Page 9: ...ER CIRCULATOR SYSTEM CIRCULATOR TO SYSTEM SYSTEM SUPPLY SENSOR DRAIN DRAIN FIELD SUPPLY RECIRCULATION PUMP TANK SENSOR AQUASTAT Y STRAINER RECOMMENDED HOT WATER OUT CHECK VALVE INDIRECT Figure 3 3 Knight Boiler Primary Secondary Piping Please note that these illustrations are meant to show system piping concept only the installer is responsible for all equipment and detailing required by local cod...

Page 10: ...ER CIRCULATOR UNION TYPICAL TEMPERATURE PRESSURE GAUGE DRAIN PRESSURE RELIEF VALVE KNIGHT BOILER INDIRECT INDIRECT HOT WATER OUT ANTI SCALD MIXING VALVE RELIEF VALVE TYPICAL TANK SENSOR AQUASTAT TYPICAL RECIRCULATION PUMP DRAIN FIELD SUPPLY CHECK VALVE COLD WATER IN Figure 3 4 Multiple Tank Connections Please note that these illustrations are meant to show system piping concept only the installer ...

Page 11: ... tank must have its own T P valve It is recommended that each tank be equipped with its own isolation valves unions and drains so that one tank may be removed from the system If local codes require a backflow preventer check with the appropriate authority to find out whether one backflow preventer may be used for tanks or each tank must be equipped with its own backflow preventer If each tank must...

Page 12: ... with local codes for applicability Do not place a valve between the combination T P relief valve and the tank Determine T P relief valve size by the following specifications unless they conflict with local codes GIT040 050 3 4 NPT with a minimum CSA Rating of 105 000 Btu hr GIT080 119 3 4 NPT with a minimum CSA Rating of 205 000 Btu hr Anti scald valves mixing valves Anti scald valves used with w...

Page 13: ... manufacturer s installation instructions for proper sizing 4 Domestic side tank piping continued WARNING Failure to install and maintain a new listed 3 4 X 3 4 T P relief valve will release the manufacturer from any claim which might result from excessive temperature and pressures Table 4A Minimum Relief Valve CSA Rating Model Btu hr GIT040 105 000 GIT050 105 000 GIT080 205 000 GIT119 205 000 Fig...

Page 14: ...et at 194 F NOTICE The sensor supplied contains an Auto Reset High Limit 194 F 3 The Knight boiler will automatically read the sensor and default the tank temperature setting to 125 F 4 Adjust the tank setpoint program Reference the Knight Installation and Operation Manual for a detailed explanation of the tank setpoint program Connect tank sensor 1 Turn OFF the power to the unit Use wire stripper...

Page 15: ...ocal Lochinvar distributor 2 Connect Aquastat to the zone controller for the Indirect Water Heater Zone 3 Adjust Aquastat to the desired temperature INDIRECT TANK AQUASTAT CONTROL 100208546 TEMPERATURE ADJUSTMENT WIRE CONNECTIONS ZONE CONTROL BOX OR ZONE VALVE OR ZONE CIRCULATOR Figure 5 2 Wiring for Zone Control Glass Lined Indirect Water Heater Installation Operation Manual ...

Page 16: ...e times its volume from the tank 3 Make sure that all electrical connections are made correctly and that no exposed high voltage wiring is present 4 Make sure that each zone valve or circulator operates when and only when its thermostat calls for heat Let each zone operate long enough to purge any remaining air from the system 5 Set the indirect water heater to the desired temperature Because hot ...

Page 17: ... steady stream of water flows from the faucets the water heater is filled Close the faucets and check for water leaks at the water heater drain valve combination temperature and pressure relief valve and the hot and cold water connections DANGER Plugging the T P relief valve or discharge piping can cause excessive pressure in the water heater resulting in severe personal injury death or substantia...

Page 18: ...Indirect Water Heater Indirect Water Heater Model Number Potable Water Volume Gal Heat Source Water Volume Gal Standby Heat Loss F hr Continuous Draw Rating Gal hr First Hour Rating Gal hr Minimum Heat Output Rate from Heat Source Btu hr Minimum Heat Source Flow Rate GPM Tank Heat Source Friction Loss Feet W C GIT040 40 1 6 1 137 167 96 000 14 5 7 GIT050 50 1 9 1 3 182 227 132 000 14 5 8 GIT080 70...

Page 19: ... estimate the minimum gallons of hot water required based on a family size number of baths and hot water appliances the First Hour Rating of the Squire must be equal to or exceed the total first hour requirements 8 Performance data continued Peak Hour Demand Worksheet Description Fill in the Blank Example 40 Gallons for the first 2 people Gals 40 Gals 10 Gallons for each additional person Gals 20 ...

Page 20: ...0 94 115 114 111 125 111 134 044 Boiler Heating Capacity First Hour Rating 180 F Boiler Loop Water Universal Sizing 45 000 260 000 Btu hr Model GIT080 GIT119 Circulator Flow GPM 5 8 12 16 5 8 12 16 Domestic Outlet 115 140 115 140 115 140 115 140 115 140 115 140 115 140 115 140 40 000 154 131 160 124 188 165 60 000 192 158 170 145 227 193 70 000 212 172 185 155 247 207 100 000 270 213 229 186 305 2...

Page 21: ...T PARTS LIST PART NUMBER DESCRIPTION 100208545 Thermostat Sensor 20 105C 100208546 Aquastat 40 180 100306392 Anode 11 81 GIT040 GIT050 100306396 Anode 17 71 GIT080 GIT119 Glass Lined Indirect Water Heater Installation Operation Manual ...

Page 22: ...22 Notes Glass Lined Indirect Water Heater Installation Operation Manual ...

Page 23: ...23 Notes Glass Lined Indirect Water Heater Installation Operation Manual ...

Page 24: ...A PCP 3000024508 CN 500015339 initial release Revision B PCP 3000026014 CN 500015684 reflects an update to Table 3A on page 6 Table 8A on page 18 and Table 8B on page 20 MM 100307474_DIR 2000559957 Rev B 06 18 Printed in U S A ...

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