Summary of the content on the page No. 1
GS Series
GSTC/GSP Indoor
GSTC Outdoor
Engineering Manual
1503540-C
Summary of the content on the page No. 2
PROPRIETARY NOTICE This document and the information disclosed herein are proprietary data of WALTER MEIER LTD. Neither this document nor the information contained herein shall be reproduced used, or disclosed to others without the written authorization of WALTER MEIER LTD., except to the extent required for installation or maintenance of recipient’s equipment. All references to the NORTEC name should be taken as referring to WALTER MEIER LTD. LIABILITY NOTICE NORTEC does not accept any liab
Summary of the content on the page No. 3
TABLE OF CONTENTS Subject Page 10-00 PRINCIPLE OF OPERATION 1. PRINCIPLE OF OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 A. COMBUSTION SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 10-10 OPERATION 1. WATER MANAGEMENT - BETTER EFFICIENCY THAN EVER . . . . . . . . . . . . . . . . . . . . . . . . . . 8 A. INTRODUCTION. . . . . . . . . . . . . .
Summary of the content on the page No. 4
K. ON-LINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24 L. LINKS 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24 M. OUTDOOR 120 VAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26 N. DRAIN WATER SUMP PUMP. . . .
Summary of the content on the page No. 5
LIST OF FIGURES Figure Page 10-00 PRINCIPLE OF OPERATION Figure 1. GS Indoor Series. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Figure 2. GS Outdoor Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Figure 3. GSTC Key Pad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Figure 4. GSP Key Pad . . . . . . . . . . . . . . . . . . . .
Summary of the content on the page No. 6
LIST OF TABLES Table Page 10-00 PRINCIPLE OF OPERATION Table 1. Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Table 2. Standard Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2008-10-01
Summary of the content on the page No. 7
THIS PAGE INTENTIONALLY LEFT BLANK 2008-10-01
Summary of the content on the page No. 8
10-00 PRINCIPLE OF OPERATION 10-00 Page 1 2008-10-01
Summary of the content on the page No. 9
1. PRINCIPLE OF OPERATION A. Combustion System (1) The combustion system is based on a fully modulating forced draft combustion air blower, a negative pressure regulated gas valve, and a 100% premix burner. On a call for humidity, the combustion air blower starts and creates a negative pressure across an orifice located at the air inlet. (2) The blower is energized to purge the system, then the hot surface igniter is activated. During this time the electronic ignition module does
Summary of the content on the page No. 10
Figure 1. GS Indoor Series Figure 2. GS Outdoor Series 10-00 Page 3 2008-10-01
Summary of the content on the page No. 11
Figure 3. GSTC Key Pad Figure 4. GSP Key Pad 10-00 Page 4 2008-10-01
Summary of the content on the page No. 12
Table 2. Standard Features Standard Features GSTC GSP* Steam Capacity adjustment x Full size alphanumeric display and keypad x Total Controller with Modbus host protocol x Transducer signal acceptance x Individual component diagnostic capability x Keypad set-point adjustment (humidity) x Display of relative humidity x Low and high relative humidity alarms x Adjustable drain with no call for humidity x Keep warm feature x Networking capability up to 10 units
Summary of the content on the page No. 13
THIS PAGE INTENTIONALLY LEFT BLANK 10-00 Page 6 2008-10-01
Summary of the content on the page No. 14
10-10 OPERATION 10-10 Page 7 2008-10-01
Summary of the content on the page No. 15
1. WATER MANAGEMENT – BETTER EFFICIENCY THAN EVER A. Introduction (1) The GS Series of humidifiers is equipped with a unique float chamber water level monitoring device. Two magnetic floats (one is a backup) measure 5 different water levels in the humidifier for proper operation. The float chamber and board are located away from the boiling action to increase reading accuracy and reduce mineral build- up since it is not in the boiling water. (2) The float chamber is connected to the
Summary of the content on the page No. 16
Model A B C D Vent Dia Vent Dia Shipped Operating Steam Outlet Gas Supply B Type BH Type Weight Weight in cm in cm in cm in cm in cm in cm in cm lbs kg lbs kg in cm (NPT) (NPT) GSTC 1 x 1 x 100 20.8 52.8 6.3 16 9.3 23.6 16.1 40.8 4 10.2 3 7.6 267 121 423 192 1.75 4.4 0.5 1.27 GSTC 1 x 1 x 200 27.2 69 11.6 29.5 14.6 37.1 22.4 56.8 5 12.7 4 10.2 355 161 599 272 3 7.6 0.75 1.91 GSTC 1 x 1 x 300 42.7 109 10.9 27.8 14.6 37.1 38 96.4 7 17.8 5 12.7 485 220 970 440 3
Summary of the content on the page No. 17
Figure 3. Physical Dimensions – GS Outdoor Humidifier 10-10 Page 10 2008-10-01
Summary of the content on the page No. 18
B. Safety Water Level Control Check (1) To ensure safe operation, the humidifier constantly monitors the back up float of the humidifier and also performs float checks at regular intervals. C. Self Diagnostic (1) This feature allows the user to activate various hardware elements within the system to prove operational compliance. D. Energy Efficient Blowdown Sequence – Unique to Nortec (1) Fill valve and blow down sequences are based on steam production and not time of operation to
Summary of the content on the page No. 19
(3) All control electronics are integral to humidifier cabinet and do not require separate cabinet on the humidifier. B. Remote Fault Indication (1) The GS Series provides output signals of the following type: (a) Humidifier “ON” (b) Humidifier “Active” (c) Humidifier “Service” (d) Humidifier “Fault” C. Modulating Controls (1) All models accept a single or dual channel input control signal(s) of t
Summary of the content on the page No. 20
through the roof without any special requirements when using BH venting. Required vent flue size depends on unit model. All connections to the flue pipes are made without having to open the humidifier cabinetry. (3) The GS Outdoor Series comes complete with BH vent, ready for easy assembly. 5. CLEARANCES (1) The clearance dimensions shown in Figure 4 and 5 are for reference only and are the minimum requirements for maintenance of the humidifier. (2) All units have frontal cleaning
