American Water Heater NonCondensing Outdoor Natural Gas GT910NIE User Manual

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REMOTE CONTROLLER CONNECTION 
 
1) Disconnect power supply from the water heater . 
2)  Take off  the water heater ’s  front cover.  
3) Please find the remote control terminal  using the diagram  below  (located around the lower  
     right -hand side of the  water heater). 
4)  Open  the plastic cover of  the remote controller , and then attach the  two fork terminal s to  
connector  base of the backside of  the remote controller with two screws.   Make sure the 
terminals are firmly fixed....

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PUMP CONTROL CONNECTIONS  
 
The water heater  can be used to control a recirculation pump. Proper pump control helps to 
p reserve the life of the system and saves energy as well .  
 
The  water heater  pump c ontrol port is a “normally -open  dry contact ”, and therefore needs 
additional components to properly control a recirculation pump.  T o control the recirculation 
pump, connect t he pump to the “pump  terminal ” in the water heater  as shown in the diagram 
below. (In a multi -unit...

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The dark squares indicate the direction 
the dipswitches should be set to. 
PUMP CONTROL MODE 
The water heater provides  the four types of the pum p control modes.  The pump control  modes 
are selected by  changing  dipswitch settings . The dipswitches are located in the upper bank  of 
dipswitch es in the  lower-left quadrant of the central  computer board  in the  water heater . (See 
picture  below) 
 
A)  Recirculation Control : No.  4 ON  
This mode is for providing hot water as soon as...

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EASY-LINK SYSTEM 
The  water heater  can be connected with other heaters of the same model  with communication 
cables to work as a multiple manifold system.  
•   The Easy -Link system can connect up to 4 units.  
•   A communication cable (gray color) comes with each unit.   The cables use 18 gage wire 
and can be up to 250ft. long all together.  
You can manifold from 2 units to 4 units without a  multi-system controller.  A 4-unit  system  has 
full automatic modulation between  15,000 BTU/h...

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The dark squares indicate the direction 
the dipswitches should be set to. 
 Easy -Link Connection Procedures  
1. Choose one of your units as the “ PARENT” unit. 
2. “ The  PARENT ”
 
Locate the lower bank  of dipswitches to the right of t he 7-seg. LED on the  central 
computer board  of the  unit that you select to be the “ PARENT” unit. Change dipswitch  No. 
8  to “ON”.   Do not change any of the dipswitches on the “ CHILD” units. 
3. Between the “ PARENT” and the “ CHILD-1 ”
 
Connect the...

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CAUTION 
•   If you connect the “ [1] (or  [2]) connector” of the “ PARENT” unit to the “ PARENT (or  [1]) 
connector” of the “ CHILD-1” unit, the system will not work as  the Easy -L ink  system.  The units 
will  operate  as individual units.  
 
 
   
 
                                                                         
 
 
 
 
 
 
 
•   If you connect the “ PARENT connector”  of the “ CHILD-1 ” unit to the “ [1] connector” of the 
“ CHILD- 2” unit, the “ CHILD-2” unit will work as an...

 
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Communication cable
P ARENTPARENTConnectorsConnectors
Lower bank of Dipswitch
OFF
ON
Lower bank of Dipswitch
OFF
ON1 234 56 78 1
23 456 78
11
22
11
22
•
  If a remote controller (optional) is used, it has to be connected to  the “PARENT ” unit. If the 
remote controller  is connected to a “ CHILD” unit,
 it will only control that particular individual 
“ CHILD” unit and will not control the E asy-L ink system  as a whole.  
 
 
 
 
 
 
 
 
 
 
MULTI -UNIT SY STEM FOR LARGE VOLUMES  
Multi-Unit...

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Multi-Unit System Connection Diagram  
The water heaters with a multi-unit controller   and a remote controller wiring:  
 
 
 
 
               
 
                          
 
 
  
   
•  The  above  connection diagram is an example of how to connect 4 water heater s together in 
a Mu lti-Unit System.  Up to 10 water heater s can be connected in this fashion. 
•   Make  sure th e “7-seg LED” of computer board  of each unit  display s the unit #.   The  multi -u nit 
controller  automatically...

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 INITIAL OPERATION 
 
 
•   Check the GAS and WATER CONNECTIONS  for leaks  before firing it for the first time.  
•   Open the main gas supply valve to the unit using only your hand to avoid any spark.  
Never use tools. If the knob will not turn by hand, do not try to force it; call a qualified 
service technician. Forced repair may result in a fire or explosion due to gas leaks.    
•   Be sure to check next to the bottom of the unit because s ome gases are heavier than air 
and may settle...

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(Unit: °F) Temperatures available under the High Temperature Mode*  (Refer to p. 31 for details.) 
 
(Unit: °F) 
2. Press  the  HOT/COLD  button  to  set                                                                                             
the  water temperature up to 120  °F (50 ° C). 
NORMAL OPE RATION 
•  Flow rate to activat e the 910 (T -M50)          :  0. 5 gallon per minute  
•   Flow rate to keep the  910 (T -M50)  running : 0. 4 gallon per minute  
 
WITHOUT REMOTE CONTROLLER...