Tekmar Mixing Control 361 - User Manual

Copyright © D 361 - 03/091 of 20
- Data Brochure
Mixing Control 361
D 361
03/09
The Mixing Control 361 is designed to control the supply water temperature to a hydronic system in order to provide outdoor reset or
setpoint operation. The control uses a variable speed injection pump to regulate the supply water temperature, while protecting the
boiler against flue gas condensation. The control has a Liquid Crystal Display (LCD) to view system status and operating information.
• Optional indoor sensor for room air temperature control
• Test sequence to ensure proper component operation
• Setback input for energy savings
• 120 V (ac) power supply
• CSA C US certified (approved to applicable UL standards)
Additional functions include:
• Quick Setup for easy installation and programming of control
• User comfort adjustment to increase or decrease building
space temperature
• Advanced settings to fine-tune building requirements
• Boiler Control for improved energy savings
• Powered mixing system pump output
Output
Boiler
Input
Universal Sensor
Included
Input
Outdoor
Sensor
Included
Output
Mixing System
Pump
Input
120 V (ac) Power
Supply
Input
Mixing Demand
Signal
Input
tekmar Timer
Optional
Input
Indoor Sensor
Optional
Output
Variable Speed
Driven Pump
Input
Universal Sensor
Included
Press the
Item
, , buttons
simultaneously for 1 sec. to
enter the
ADJUST
menu
Use the , buttons to
adjust the
ROOM
setting
To increase or decrease the
building temperature:
Mixing Control 361
Variable Speed
Mixing
Demand
503010
C US
30% Enable
Return
10% Enable
Boiler Sensor
Supply
Installer
Advanced
ROOM
- Set to desired room temp.
OUTDR DSGN
- Set to coldest (design)
outdoor temp.
Installer Instructions
Terminal Unit Set to
High Mass Radiant
Low Mass Radiant
Fan Coil
Convector
Radiator
Baseboard
1
2
3
4
5
6
Refer to brochure for more information
Made in Canada by
tekmar Control Systems Ltd.
tektra 913-01
Power:
Variable Pump:
Relays:
Demand:
120V + 10% 50/60 Hz 1650 VA
240V (ac) 2.4 A (FLA) 5 A (LRA), fuse T2.5 A
240V (ac) 10 A 1/3 hp
20 to 260 V (ac) 2 VA
Signal wiring must be
rated at least 300V.
H1188D
MIX
°
F
VIEW
Test
11 12 13 14 15 16 17
Do not apply power
UnO
Sw
Com
Boil
Mix
Com
Out
Indr
910
Boiler
1
2 3 4
5 6 7 8
Mixing
Demand
L
N
Sys
Pmp
N
Var
Pmp
N
Power
Display defaults back to
VIEW
menu after 20 sec.
% Out
Terminal
Unit
70 90
OCC
Item
Note:
Mixing demand must be
powered with 20 to 260
V (ac) before pumps will
operate or the boiler is
able to fire.
Date Code
Meets Class B:
Canadian ICES
FCC Part 15

Summary

User Interface Overview

Navigating the Control Interface

Explains how to use the Item and Adjust buttons to navigate menus, view information, and modify settings on the LCD.

Display Fields and Symbols

Identifies LCD display fields (Item, Number, Menu, Status) and provides a glossary for common operational symbols.

Sequence of Operation

Section A - General Operation

Covers control power-up, modes (Outdoor Reset, Setpoint), variable speed pump control, and boiler protection.

Section B - Mixing

Details mixing demand, system pump operation, and indoor sensor use for temperature feedback and control.

Section C - Boiler Operation

Explains boiler contact activation, minimum boiler settings, and boiler protection features.

Installation and Wiring

Electrical Connections

Covers powered input (120V AC, Mixing Demand) and output (System Pump, Var Pump, Boiler) connections.

Wiring Testing Procedures

Outlines testing of sensors, power supply, inputs, and outputs using a multimeter for verification.

Configuration Settings

DIP Switch Settings

Details the function of DIP switches (Advanced/Installer, Boiler Sensor) for control configuration.

Quick Setup Guide

Guides initial setup for Outdoor Reset and Setpoint Control, including temperatures and terminal units.

Control Operation Testing

Built-in Test Sequence

Explains the test routine for verifying control functions, outputs, and relays, including pausing and advancing.

Troubleshooting and Maintenance

General Troubleshooting Steps

Provides a systematic approach to diagnosing heating system issues, including information gathering and testing.

Error Message Interpretation

Lists common error codes, their causes, and solutions for diagnosing control faults.

Tekmar Mixing Control 361 Specifications

General

Category	Temperature Controller
Power Supply	24 V (ac) ±10%, 50/60 Hz, 3 VA
Display	LCD
Enclosure Rating	NEMA 1
Application	radiant floor heating, snow melting
Control Type	PID
Sensor Type	10K thermistor
Input Type	10k thermistor
Control Algorithm	PID
Operating Temperature Range	32°F to 122°F (0°C to 50°C)