CSA American GTS-705-NEA Installationshandbuch

Gas Tankless Water Heater 910 / 910 ASME (T-M50 / T-M50 ASME) Models Suit ableforpotablewa terheat ingandspace‐heating**Pleaserefertolocal

- 10 -Keep the clearances. INDOOR INSTALLATION 1. Follow all local codes, or in the absence of local codes, follow the most recent edition of the N

- 11 -The dark square is the direction the dipswitch should be set to. DIRECT INTAKE VENT SYSTEM This water heater may be converted to a direct-vent

- 12 -VENTING INSTRUCTIONS WARNING: Improper venting of this appliance can result in excessive levels of carbon monoxide which can result in severe

- 13 -VENT TERMINATION WARNING: Improper installation can cause nausea or asphyxiation, severe injury or death from carbon monoxide and flue gases p

- 14 - Horizontal Installation Diagram Vertical Installation Diagram  Regarding the clearance fr

- 15 -VENT CLEARANCES Canada U.S.A Direct vent andother than Direct Vent Direct vent Other than Direct VentA Clearanc

- 16 -Size the gas pipe appropriately to supply the necessary volume of gas required for the water heater using ANSI Z223.1/NFPA 54 in the USA or CAN

- 17 -Natural Gas Supply Piping Maximum Delivery Capacity of Cubic Feet of Gas per Hour of IPS Pipe Carrying Natural Gas of 0.60 Specific Gravity Bas

- 18 -1. Turn off all electric power to the water heater if service is to be performed. 2. Turn the manual gas valve located on the outside of the

- 19 -WATER CONNECTIONS ・Do not use this water heater if any part has been submersed under water. Immediately call a licensed professional to insp

- 2 - CONTENTS NOTE *All references to the 910 (T-M50) also refer to the 910 ASME (T-M50 ASME) model *Check the rating plate to ensure

- 20 -ELECTRICAL CONNECTIONS WARNING: Follow the electrical code requirements of the local authority having jurisdiction. In the absence of such requ

- 21 -REMOTE CONTROLLER CONNECTION 1) Disconnect power supply from the water heater. 2) Take off the water heater’s front cover. 3) Please find the

- 22 -PUMP CONTROL CONNECTIONS The water heater can be used to control a recirculation pump. Proper pump control helps to preserve the life of the s

- 23 -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

- 24 -EASY-LINK SYSTEM The water heater can be connected with other heaters of the same model with communication cables to work as a multiple manifol

- 25 -The dark squares indicate the direction the dipswitches should be set to. Easy-Link Connection Procedures 1. Choose one of your units as the “

- 26 -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 syste

- 27 - Communication cablePARENTPARENTConnectors ConnectorsLower bank of DipswitchOFFONLower bank of DipswitchOFFON123456781234567811221122 If a re

- 28 -An individual cut-off switch is recommended for each unit in a multi-unit system for the purpose of maintenance. Multi-Unit System Connection

- 29 - INITIAL OPERATION  Check the GAS and WATER CONNECTIONS for leaks before firing it for the first time.  Open the main gas supply valve to

- 3 -INTRODUCTION 1. A hot water tap is turned on. 2. Water enters the heater. 3. The water fl

- 30 -(unit:°F) Temperatures available under the High Temperature Mode NORMAL OPERATION  Flow rate to activate the 910 (T-M50) : 0.5 gallon

- 31 -*To change the remote controller’s mode from Default Mode to High Temperature Mode, please follow the procedures below (the remote controller m

- 32 -FLOW  The flow rate through the water heater is limited to a maximum of 14.5 GPM.  The temperature setting, along with the supply temperatu

- 33 -The dark squares indicate the direction the dipswitches should be set to. TEMPERATURE SETTINGS  There are 8 preset temperatures that you can

- 34 -MAINTENANCE AND SERVICE WARNING: Turn off the electrical power supply and close the manual gas control valve and the manual water control val

- 35 -GENERAL TROUBLESHOOTING ~ TEMPERATURE and AMOUNT OF HOT WATER ~ PROBLEM POSSIBLE SOLUTIONS It takes long time to get hot water at the fixtures.

- 36 -~ WATER HEATER ~ PROBLEM POSSIBLE SOLUTIONS Unit does not ignite when water goes through the unit.  Is the flow rate over 0.5 GPM? (p. 30) 

- 37 -TROUBLESHOOTING – ERROR CODES  The units are self diagnostic for safety and convenience when trouble shooting.  If there is a problem with

- 38 - OPERATING SAFETY FOR YOUR SAFETY READ BEFORE OPERATING WARNING: If you do not follow these instructions exactly, a fire or explosion may resul

- 39 - DANGER Vapors from flammable liquids will explode and catch fire causing death or severe burns. Do not use or store flammable products such a

- 4 -TWO COMBUSTION SECTIONS WITHIN THE 910 (T-M50) The water heater contains two combustion sections. The section that turns on first is whichever

- 40 -CheckvalveCheckvalveAirseparatorRecirculationpumpHotwateroutlettofixturesAirVentUnionsGassupplyBallvalvesExpansiontankY‐Strain

- 41 - Dual-purpose hot water heating (Domestic and Space Heating): Priority Control Devices such as a flow switch, an Aquastat o

- 42 -ADDITIONAL CLEARANCES Please follow all local and national codes in regards to proper termination clearances. In the absence of such codes, th

- 43 -OPTIONAL ITEMS 1. Temperature remote controller: 9007603005 (TM-RE30) The temperature remote controller has two functions. It allows the outpu

- 44 - COMPONENTS DIAGRAM Computer board assembly Case assembly The 910 (T-M50) and the 910 ASME (T-M50 ASME) models share the same components. 37613

- 45 - Burner assembly 1141151167051131131177077071021211191187077071091121061111051131131041031081071131101011141151161131131177077071021211191187

- 46 -Combustion and Exhaust assembly Other than Part# 444, Part# 445, Part# 446 and Part# 447, the 910 (T-M50) and the 910 ASME (T-M50 ASME) models

- 47 - Water way assembly 910 (T-M50) 910 ASME (T-M50 ASME) 422419411419411424406407419411425427423407406425427411419411419422

- 48 -PARTS LIST Item# Description Part# 910 models T-M50 models001 002 003 004 005 Case assembly Brackets Screw M4X10 (w/washer) Screw M4X10 (Coat

- 49 - Item# Description Part# 910 models T-M50 models136 137 138 139 140 Duct gasket Screw M4X10 Fan damper Screw M3X6 Freeze protection thermost

- 5 -SAFETY GUIDELINES  Installation and service must be performed by a qualified installer (for example, a licensed plumber or gas fitter), other

- 50 - Item# Description Part# 910 models T-M50 models447 448 449 450 451 Connecting pipe for 910 ASME (T-M50 ASME) Left cold pipe for 910 ASME

- 51 - OUTPUT TEMPERATURE CHART Output Temperature vs. GPM (Max. 14.5 GPM) with Various Ground Water Temperature0.02.04.06.08.010.012.014.016.0Output

- 52 -3. General terms of limited warranty: This limited warranty gives you specific legal rights, and you may also have other rights which vary fro

- 6 -INSTALLATION All gas water heaters require careful and correct installation to ensure safe and efficient operation. This manual must be followed

- 7 - GENERAL 1. The manifold gas pressure is preset at the factory. It is computer controlled and should not need adjustment. 2. Maintain proper

- 8 - WARNING FOR INSTALLATIONS FOR YOUR SAFETY, READ BEFORE INSTALLATION: Do not install the heater where water, debris or flammable vapors may get

- 9 - The dark square is the direction the dipswitch should be set to. Keep the clearances. OUTDOOR INSTALLATION 1. Follow all local codes, or in t