Smartgen HT SERIES User manual

HT SERIES
(HT10/HT22)
ENGINE WATER HEATER
USER MANUAL
SMARTGEN (ZHENGZHOU) TECHNOLOGY CO., LTD.

Chinese trademark
English trademark
SmartGen —make your generator smart
SmartGen Technology Co., Ltd.
No.28 Jinsuo Road, Zhengzhou, Henan Province, China
Tel: [phone]
[phone](overseas)
Fax: [phone]
Email: sal[email protected]
Web: www.smartgen.com.cn
www.smartgen.cn
All rights reserved. No part of this publication may be reproduced in any material form (including
photocopying or storing in any medium by electronic means or other) without the written permission of
the copyright holder.
Applications for the copyright holder’s written permission to reproduce any part of this publication should
be addressed to Smartgen Technology at the address above.
Any reference to trademarked product names used within this publication is owned by their respective
companies.
Smartgen Technology reserves the right to change the contents of this document without prior notice.
Table 1 Software Version
Date
Version
Note
2012-04-05
1.0
Original release.
2012-06-25
1.1
Product renamed; parameters modified.
2012-10-08
1.2
Dimensional drawing modified; Film drawing modified.
2013-05-23
1.3
Add drain valve.
2014-07-08
1.4
Add installation instruction and other descriptions.
2015-10-26
1.5
Add heater types which use 50ºC and 60ºC to break temperature switch.
2016-01-21
1.6
Abolish HT05 and HT15 type.
2016-03-29
1.7
Add Heater Packing List.
2016-08-08
1.8
Modify the parameters of power.
2020-12-03
1.9
Modify the product weight.

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CONTENTS
1OVERVIEW .........................................................................................................................4
2PERFORMANCE AND CHARACTERISTICS.....................................................................4
3TECHNICAL PARAMETERS ..............................................................................................5
4INDICATOR.........................................................................................................................5
5CONNECTIONS..................................................................................................................6
6HEATER CONNECTION.....................................................................................................6
7INSTALLATION INSTRUCTION .........................................................................................7
8CAUTION ............................................................................................................................7
9CASE AND INSTALLATION DIMENSIONS........................................................................8
10ADDITION: HEATER PACKING LIST.................................................................................9

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1 OVERVIEW
HT Series Heater enjoys wide application on various engine coolant preheaters. It has fine cast aluminum
enclosure and self-extinguishing engineering plastics end closure, multiple installation ways and easy and
convenient use.
If during cranking the outside temperature is lower than 4ºC, engine coolant and lubricant may condense
into solid state and lose their lubricating and cooling properties, which can damage the engine. Engine
heater should be installed to ensure normal starting and running of the engine when the outside
temperature is lower than 4 ºC.
HT Series Water Heater combines the following features: cast stainless steel inner pipes and end closure
with high corrosion resistance; power and heating light indicators; 3 kinds of heaters with different heating
temperature are optional (Standard heater: 40ºC; 50ºC and 60ºC heaters are need to be customized).
This product is suitable for various engine with (0~13.1)L displacement.
Please login our company's official website to select heaters.
2 PERFORMANCE AND CHARACTERISTICS
1) Fine cast aluminum enclosure and special surface treatment with high corrosion resistance and
high/low temperature capability;
2) Stainless steel inner pipes and end closure with high corrosion resistance;
3) Coolant temperature is controlled by thermostat which is installed within the heater. It has simple
connections and high reliability;
4) Power and heating light indicators make it easy to observe the heater status;
5) There is a water drain valve with seal ring on the bottom of the heater so as to be used when needed;
6) Overheating thermostat provides the protection of dry heating and overheating;
7) Multiple installation ways apply to different installation situations;
8) This product can work normally at -25℃temperature.

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3 TECHNICAL PARAMETERS
HT series water heaters are divided into 2 types according to the power of the internal heating pipes, their
case and installation dimensions are all the same.
Table 2 Technical Parameters
Model
HT10
HT22
Rated Power
1190W (220V1000W)
2200W (220V1850W)
Rated Voltage
240V
Rated Current
5A
9.2A
Engine Displacement (L)
0~7
7~13
Thermostat Set Point
40ºC±3 ºC
Thermostat Range
Standard: Off: 40 ºC±3 ºC On: 25 ºC±6 ºC
HT10-1，HT22-1:
Off: (50±3)ºC On: (35±6)ºC
HT10-2，HT22-2:
Off: (60±3)ºC On: (45±6)ºC
Overheating Thermostat Range
Off: 95 ºC±3 ºC On: 80 ºC±6 ºC
Insulating Resistance
≥50MΩ
Electrical Strength
AC 1.5kV 1min
Inlet/Outlet Size
3/4″(φ19mm)
Max. Water Pressure
0.5MPa
Protection Level
IP54
Vibration Resistance
(5~8)Hz; Amplitude±7.5mm; Triaxial
(8~500)Hz; a=2g; Triaxial
Shock Resistance
Half-sine Wave; apeak=50g; Triaxial
Working Conditions
-25 ºC~+70 ºC
Storage Conditions
-30 ºC~+70 ºC
Case Dimensions
203mm×150mm×177mm
Weight（include accessories）
1.9kg
4 INDICATOR
Fig.1- Panel Indicator Drawing

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5 CONNECTIONS
The supplied power cable is 1.2m long. Please follow the back cover application diagram when wiring;
earth line must be soundly connected to earth.
In the above diagram: L--Phase line (Red), N-Neutral line (Green), E-Earth line (Yellow).
6 HEATER CONNECTION
Please install the heater vertically according to the diagram before use. Paying attention to direction of
heater inlet and outlet, and ensure that the heater position is below the lowest water lever of the engine
and that all the air is exhausted out of the heater and it is topped off with water.
Heater connection diagram:
Fig.2- Heater Operating Schematic Diagram
Fig.3- Heater Position Diagram

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7 INSTALLATION INSTRUCTION
Fig.4- Installation Dimensions
8 CAUTION
Before starting the machine, ensure that all the air is exhausted out of the heater and it is topped off with
coolant. If water is used, please drain it off when generator is stopped to avoid internal corrosion.
Otherwise, the remaining water freezes when temperature is lower than 0°C, which can damage the
enclosure.
Corresponding antifreeze is strongly recommended.
Earth line must be soundly connected to earth.
Drain valve: Can be opened or closed using hexagonal tools.
(Unit: mm)
Fig.5- Water Drain Valve

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9 CASE AND INSTALLATION DIMENSIONS
(Unit: mm)
Fig.6- Case Dimensions

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10 ADDITION: HEATER PACKING LIST
No.
Name
Number
Remarks
1
Heater
1
2
Bracket
1
3
Flat gasket
4
GB/T 95 6
4
Spring washer
4
GB/T 93 6
5
Hexagon nut
4
GB/T 6170 M6
6
Hexagon screws
4
GB/T 5783 M6×25
7
Hose clamps
4
Φ 18 – Φ33
8
Certificate
1
9
User Manual
1