Tekmar 362 - User Manual

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Copyright © D 362 -12/08
The Mixing Control 362 is a microprocessor based control with two distinct operating modes.
MODE —1— allows the control to provide a reset mixed supply water temperature to a heating system based on outdoor air temperature.
Multiple zone temperature controls can be achieved by using either a conventional thermostat system or by using tekmar Zone Controls
attached to the 362. For single zone heating applications, a single Room Temperature Unit (RTU) can be connected directly to the 362
for zone temperature control.
MODE —2— allows the control to provide a single zone of snow melting. With the addition of a Snow Melting Kit 092, the 362 can
provide slab temperature control and slab ΔT protection. The melting mode is initiated manually either with a demand signal or from the
Snow Melting Kit enabling device.
The 362 incorporates a large Liquid Crystal Display (LCD) in order to provide system status and operating information. The same LCD
is used when setting up and installing the control. Standard features for both modes of operation include boiler return protection,
intelligent boiler operation, Warm Weather Shut Down (WWSD), and pump exercising. As well, with the addition of a new Monitor
feature, it is now possible to track pump and boiler running hours, boiler cycles and high and low sensor temperatures. The 362 also has
a unique feature that allows the control to supply heat to the mixed system from either the boiler or a thermal storage tank.
not testing
testing
off
red
LR 58233
E150539
70
Input
tekmar Slab Sensor or Indoor Sensor or
Zone Control
OR OR
Input
tekmar
Timer
UnOcc
°
F
View
Open
Operating Modes
1 Heating
2 Snow melting
4
Te s t
not testing
testing
off
red
2
5
Mix
Pmp
7
Pwr
Mix
9
13
tN1/
tN2
14
Com
15
10K
16
UnO
Sw
17
Com
Mixing Control 362
Floating Action / Variable Speed
3
6810
Boiler
Opn Cls
Var
Mix Demand
WWSD
Minimum
Maximum
Melting
Idling
11 12
Com Mix
Ret
Mix
19
Boil
20
Out
18
Mix
Demand
Reset Ratio
Setback
Characterized
Heating Curve
None
Do not apply power
Menu
Item
Power
N L
R
C US
1
%
For maximum heat,
press and hold
Test
button for 3 seconds.
Output
M
Output
Mixing Valve & Actuating
Motor OR Var. Speed
Driven Pump
OR
Input
Universal
Input
Room
Temperature
Unit (RTU)
Input
Remote
Display
Module (RDM)
OR OR
Input
Snowmelt
Kit
(SMK)
8
79
ItemMenu
°
F
View
!
WWSD
1
%%
2
ItemMenu
°
F
View
!
WWSD
1
%%
2
Input
Universal
Sensor
Included
Input
Universal
Input
Outdoor
Output
Mixing System
Pump
Input
120 V (ac) Power
Supply
Input
Mix Demand
Signal
D 362
12/08
Mixing Control 362
- Data Brochure
Note:
Mixing demand must be
powered with 20 to 260
V (ac) before the mixing
valve is able to open and
the boiler is able to fire.
Made in Canada by
tekmar Control Systems Ltd.
tektra 929-04
Signal wiring must be rated at least 300 V.
Wiring must be rated 194°F (90°C) minimum
Meets Class B:
Canadian ICES
FCC Part 15
Date Code
See product literature
INSTALLATION CATEGORY II
H1176D
1
Power 115 V ±10% 60 Hz 900 VA
Relays 230 V (ac) 7.5 A 1/3 hp, pilot duty 240 VA
Var. Pump 230 V (ac) 2.4 A 1/6 hp, fuse T2.5 A 250V
Demands 20 to 260 V (ac) 2 VA
testing pausedred

Summary

Sequence of Operation

Section A: General Operation

Overview of control features, modes, and mixing device selection.

Section B: Mixing Reset

Details on managing mixing reset for heating systems.

Section C: Snow Melting Modes

Details on various snow melting operational modes and configurations.

Section D: Boiler Operation

How the control manages boiler functions for heating and snow melting.

Installation

Preparation and Rough-in Wiring

Steps for preparing, mounting, and initial wiring of the control.

Electrical Connections

Detailed guidance on connecting power inputs, sensors, and outputs.

Wiring Tests

Methods for testing sensors, power supply, and output operations.

DIP Switch Settings

Access Levels

Explanation of different user access levels for control settings.

Testing the Control

Test Sequence

Step-by-step procedure for testing control functions and outputs.

Max Heat Feature

How to use the Max Heat function for system start-up.

Troubleshooting

Troubleshooting Steps

A systematic approach to diagnosing and resolving system issues.

Error Messages

Control Errors

Description of error codes related to control operation and storage.

RTU Communication Errors

Error codes for RTU communication and sensor issues.

Technical Data

Product Specifications

Electrical, physical, and environmental specifications of the control.

Limited Warranty

Product Return Procedure

Guidelines for returning products under warranty.

Tekmar 362 Specifications

General

Brand	Tekmar
Model	362
Category	Music Mixer
Language	English