Smartgen HT SERIES User manual

HT SERIES
(HT05M/HT10M/HT22M)
ENGINE WATER HEATER
USER MANUAL
SMARTGEN (ZHENGZHOU) TECHNOLOGY CO., LTD.

Chinese trademark
English trademark
SmartGen —make your generator smart
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
2018-03-23
1.0
Original release.
2018-05-31
1.1
Combined installation instruction and overall dimensions into one
drawing; modified technical parameters table; modified front foil
drawing.
2020-03-21
1.2
Fixed temperature unit.
2020-08-20
1.4
Added product model HT05M, modified the technical parameter
“Off/Reset Temperature” of HT10M-2, HT22M-2.
2020-12-03
1.5
Modified the product weight.
2021-04-26
1.6
1.Changed the water drain valve;
2.Changed the water drain valve drawing;
3.Changed the font, the format of header and footer.
2021-09-16
1.7
Optimize the Heater Operating Schematic Diagram and the Heater
Position Diagram.

HT Series Engine Water Heater User Manual Page 3 of 9
CONTENTS
1 OVERVIEW.................................................................................................................................................4
2 PERFORMANCE AND CHARACTERISTICS............................................................................................4
3 TECHNICAL PARAMETERS......................................................................................................................5
4 INDICATOR.................................................................................................................................................6
5 OPERATION...............................................................................................................................................6
5.1 TEST RUNNING...............................................................................................................................6
5.2 RESET OVERHEAT PROTECTION.................................................................................................6
6 WIRE CONNECTION .................................................................................................................................6
7 HEATER CONNECTION ............................................................................................................................6
8 INSTALLATION AND OVERALL DIMENSIONS.........................................................................................8
9 CAUTION....................................................................................................................................................8
10 HEATER PACKING LIST............................................................................................................................9

HT Series Engine Water Heater User Manual Page 4 of 9
1 OVERVIEW
HT Series Water 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 4℃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℃.
HT Series Water Heater combines the following features: cast stainless steel inner pipes and end
closure with high corrosion resistance; power, heating and overheat protection light indicators; 3 kinds of
heaters with different heating temperature are optional (Standard heater: 40℃; 50℃and 60℃heaters are
needed to be customized).
This product is suitable for various engine with (0~13)L displacement.
Please login our company's official website (www.smartgen.com.cn) to select heaters.
2 PERFORMANCE AND CHARACTERISTICS
─Fine cast aluminum enclosure and special surface treatment with high corrosion resistance and
high/low temperature capability;
─Stainless steel inner pipes and end closure with high corrosion resistance;
─Coolant temperature is controlled by thermostat which is installed within the heater. It has simple
connections and high reliability;
─power, heating and overheat protection light indicators make it easy to observe the heater status;
─There is a water drain valve with seal ring on the bottom of the heater so as to be used when
needed;
─Users can press “Test” button to test-run the machine in the extremely high ambient temperature;
─Overheating thermostat provides the protection of dry heating and overheating;
─Multiple installation ways apply to different installation situations;
─This product can work normally at -25℃temperature.

HT Series Engine Water Heater User Manual Page 5 of 9
3 TECHNICAL PARAMETERS
Table 2 –Technical Parameters
Items
Description
Model
HT05M
HT10M
HT22M
HT10M-1
HT22M-1
HT10M-2
HT22M-2
Rated Power
595W
(220V
500W)
1190W
(220V
1000W)
2200W
(220V
1850W)
1190W
(220V
1000W)
2200W
(220V
1850W)
1190W
(220V
1000W)
2200W
(220V
1850W)
Rated Voltage
AC240V
Rated Current
2.5A
5A
9.2A
5A
9.2A
5A
9.2A
Engine
Displacement
(L)
0~2.5
2.5~7
7~13
2.5~7
7~13
2.5~7
7~13
Thermostat Set
Point
(40±3 )℃
(50±3 )℃
(60±3 )℃
Thermostat
Range
Off: (40±3)℃
Reset: (25±6)℃
Off: (50±3)℃
Reset: (35±6)℃
Off: (60±3)℃
Reset: (45±6)℃
Overheating
Thermostat
Range
Off: (110±3)℃Reset: Manual (≤95℃)
Insulating
Resistance
≥50MΩ
Electrical
Strength
AC 1.5kV 1min
Inlet/Outlet Size
3/4″(Ф19mm)
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
Temperature
-25℃~+70℃
Storage
Temperature
-30℃~+70℃
Case
Dimensions
208mm×150mm×177mm
Weight（include
accessories）
1.9kg

HT Series Engine Water Heater User Manual Page 6 of 9
4 INDICATOR
Fig.1 –Panel Indicator Drawing
5 OPERATION
5.1 TEST RUNNING
If the heater is not heating and the overheat protection light is not on, users can press “Test” button to
perform the test-run operation.
5.2 RESET OVERHEAT PROTECTION
When overheat alarm indicator is on, heater will enter into overheat protection status and stop
heating. If heater temperature falls below the reset temperature limit of overheat protection thermostat
(95℃), users need to press reset button and heater enters into auto mode again.
6 WIRE CONNECTION
The supplied power cable is 1.2 m 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).
7 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.

HT Series Engine Water Heater User Manual Page 7 of 9
Fig.2 –Heater Operating Schematic Diagram
Fig.3 –Heater Position Diagram

HT Series Engine Water Heater User Manual Page 8 of 9
8 INSTALLATION AND OVERALL DIMENSIONS
(Unit: mm)
Fig.4 –Installation Dimensions
9 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℃, 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 wrench, adjustable wrench, or a cross
screwdriver. (Unit: mm)
Fig.5 –Water Drain Valve

HT Series Engine Water Heater User Manual Page 9 of 9
10 HEATER PACKING LIST
Table 3 –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
_________________________________