Instruction Manual

ManualsBrandstekmar ManualsSensors367 Zone Control

- Data Brochure

Zone Control 367

D 367

07/95

The Zone Control 367 is a microprocessor-based energy management control that uses PID

logic to control the temperature in up to 6 heating zones. Multiple zone controls can be daisy

chained together for up to 36 zones of heating. The 367 allows a variety of zoning options

including: single stage zones, two stage zones and modulating zones. The 367 is designed

to stagger zone operating times in order to minimize boiler short cycling and allow boiler

purging between cycles. The 367 has a built in night setback timer and a separate Optimum

Start / Stop feature for each zone. When the 367 is used with a tekmar reset control, the 367

provides indoor temperature feedback that adjusts the supply water temperature in order to

satisfy the zone with the highest heat load. Central ventilation, mechanical cooling and free

cooling systems can also be directly controlled through the 367.

Zone Control 367

One & Two Stage / One Stage & Floating

Power

Heat Required

Zone 2 / Hi stage /

Close / Ventilation

System Pump

24 hr. Timer

• Dial the desired duration

of the UnOccupied period.

• Press start button at the time of day

you want the UnOcc. period to begin.

Timer Active light turns on.

Start

UnOccupied

Duration

0 = always Occupied

24 = always UnOccupied

Zone 1 / Lo stage /

Open / Cooling

Zone 4 / Hi stage

Zone 3 / Lo stage

Open

Zone 6 / Hi stage

Zone 5 / Lo stage

Open

70°F

(21°C)

(4)

100

(38)

UnOccupied

Occupied

Optimum Start / Stop

UnOccupied

Timer Active

12 hrs.

618

Control Strategy . . . . . . . . . . . . . . . . pg. 2 Advanced Settings . . . pg. 13

Basic Sequence of Operation . . . . . pg. 3 Testing the Control . . .pg. 13

Basic Installation . . . . . . . . . . . . . . . pg. 6 Error Messages . . . . . . pg. 15

Basic Settings . . . . . . . . . . . . . . . . . . pg. 9 Technical Data . . . . . . . pg. 16

Advanced Sequence of Operation . . pg. 10 Limited Warranty . . . . . pg. 16

Advanced Installation . . . . . . . . . . . . pg. 12

Zone Control 367

One & Two Stage / One Stage & Floating

H1121 2

Made in Canada by

tekmar Control Systems Ltd.

123

Pmp

Power

11 12 13 14

Power

Pump Relay

Zone Relays

120 V 50/60 Hz 8 VA

120 V (ac) 10 A 1/3 hp, pilot duty 240 VA

120 V (ac) 6 A 1/3 hp, pilot duty 240 VA

Aug 95

31000266

24 2523 26 27

Do not apply power here

21 22

5-6

Com

70°F

(21°C)

(4)

100

(38)

UnOccupied

5678910

LR 58223

NRTL/C

Occupied

Optimum Start / Stop

UnOccupied

Timer Active

24 hr. Timer

12 hrs.

618

• Dial the desired duration of the

UnOccupied period.

• Press start button at the time of day

you want the UnOcc. period to begin.

Timer Active light turns on.

Start

15 16 17

Com

Sen

RTU

Com

Sen

RTU

Com

Sen

UnO

Com

Sen

Out

Sen

2018 19

Caution: Signal wiring must be rated at least 300V

UnOccupied

Duration

0 = always Occupied

24 = always UnOccupied

PRGM

TIME

AMPM

UNOCC

OVR

SMWTFT

LR 58233

E150539

Max. Room

65°F

Off

Floating Motor

Speed

130 sec.

30 230

100

200

0°F

-40 Off

Design Outdoor

Zone 1 Heating

One Stage & Floating

Off

Zone 1 Cooling

Optimum Start

Thermal Motor

Zone

Occ/UnOcc

Zone 2 Ventilating

Zone 2 Heating

1,2

Occ. only

One & Two Stage

Power

Heat Required

Zone 2 / Hi stage /

Close / Ventilation

System Pump

Zone 1 / Lo stage /

Open / Cooling

Zone 4 / Hi stage /

Zone 3 / Lo stage /

Open

Zone 6 / Hi stage /

Zone 5 / Lo stage /

Open

Pmp

System

Out

RTU

63-4

Com

341-2

Com

LR 58233

E150539

Test

Input

120 V (ac)

Power

Supply

Input

tekmar Zone

Control

Output

System

Pump

Input

Outdoor

Sensor

Input

tekmar RTUs or

Indoor Sensors

Ventilation

Outputs

Zone Valves or

Zone Pumps

Output

Cooling

Input

tekmar

Timer

Output

tekmar Reset

Control

Zone Valve or

Zone Pump

Summary of content (16 pages)

PAGE 1
- Data Brochure D 367 Zone Control 367 The Zone Control 367 is a microprocessor-based energy management control that uses PID logic to control the temperature in up to 6 heating zones. Multiple zone controls can be daisy chained together for up to 36 zones of heating. The 367 allows a variety of zoning options including: single stage zones, two stage zones and modulating zones.
PAGE 2
Control Strategy ZONING OPERATION In a multiple zone heating system, the zones may have different internal heat gains, heat losses or different temperature settings. Each zone must therefore have individual temperature control. For maximum comfort, the heat should be continuously supplied to the zone at the same rate the zone is losing heat. The most accurate method of accomplishing this is by outdoor reset; however, it is not normally economical to modulate the supply water temperature to every zone.
PAGE 3
At the start of the night setback period the heat is turned off, but the heat contained within the slab or radiator continues to heat the building and there is a delay before the space temperature begins to drop. At the end of this delay the temperature within the building gradually decreases, and may eventually reach the required UnOccupied temperature after sufficient time has elapsed.
PAGE 4
ZONING OPERATION The 367 can directly control the temperature of up to 6 One Stage heating zones or 3 Two Stage heating zones or a combination of One Stage and Two Stage zones. In order to measure the indoor temperature, each zone requires either an Indoor Sensor or a Room Temperature Unit (RTU). With an RTU the desired zone temperature is set using the RTU dial, but with an Indoor Sensor the desired zone temperature is fixed at 70°F (21°C). The Max.
PAGE 5
Fast Acting Zone Valves or Zone Pumps  If the Thermal Motor DIP switch is set to Off, the 367 assumes that fast acting zone valves or zone pumps are connected to the zone relays. The system pump and Heat Required light are therefore turned on as soon as the first zone relay is operated. One minute before the last zone relay is turned off, the 367 purges the boiler by turning the Heat Required light off and keeping the system pump operating.
PAGE 6
UnOccupied Temperature  70°F (21°C) When the 367 is in UnOccupied mode, the UnOccupied light is turned on and the UnOccupied dial is used to set the desired temperature within the UnOccupied zones. Note If the RTU dial for an UnOccupied zone is set below the UnOccupied dial, the 367 continues to use the RTU dial as the desired temperature within that zone.
PAGE 7
be installed at a later time. Power must not be applied to any of the wires during the rough-in wiring stage. • Optional If an Outdoor Sensor 070 is used, install it according to the instructions in the Data Brochure D 070 and run two wires back to the control. • If an Indoor Sensor 076 is used for any zone, install the Indoor Sensor(s) according to the instructions in the Data Brochure 070 and run the wiring back to the control.
PAGE 8
Sen — RTU 4 (8 and 10) terminals. Common block for RTU 1 and RTU 2 DIP switch set to Zone 1 Heating • If the common block is used for a single One Stage heating zone, connect the RTU or Indoor Sensor to terminals Com Sen — RTU 1 (5 and 6). • If the common block is used for 2 One Stage heating zones, connect one RTU to the Com Sen — RTU 1 (5 and 6) terminals and connect the other RTU to the Com Sen — RTU 2 (5 and 7) terminals.
PAGE 9
Test the Sensors  In order to test the sensors and Room Temperature Units (RTUs), the actual temperature at each sensor and RTU location must be measured. A good quality digital thermometer with a surface temperature probe is recommended for ease of use and accuracy of testing. Where a digital thermometer is not available, a spare sensor can be strapped alongside the one to be tested and the readings compared.
PAGE 10
Floating Motor Speed  130 sec. 100 This dial has no effect on the operation of the control unless modulating zone valves are used. See the Advanced section of this brochure for more information. 200 30 Using the Internal 24 hr. Timer  First determine the length of time required for the UnOccupied period and turn the UnOccupied Duration dial to the desired duration length. If the dial is set to 24 hours, the 370 remains in UnOccupied mode continuously.
PAGE 11
Common Blocks  The 367 has 3 common blocks for both the RTU inputs and relay outputs. Each common block has a terminal starting with Com (e.g. Com Sen or Com 1-2 ). When the DIP switch is set to One Stage & Floating, each common block can be used for either two One Stage zones or one Floating action zone. One Stage common blocks are explained on page 4 of this brochure. Floating Action Common Blocks  130 sec.
PAGE 12
Advanced Installation This section supplements the basic installation that begins on page 6. Sensor and Unpowered Input Connections  Do not apply power to these terminals as this will damage the control. Floating Action RTU and Indoor Sensor Connections 19 20 21 5 6 7 8 9 10 11 ComRTU RTUComRTU RTU Com It is best to start the Floating Action heating zones at output relays 1 and 2 and work towards output relays 5 and 6.
PAGE 13
Floating Action Zones • If a floating action actuating motor is connected to the terminals Com 1-2 —1 —2 (19, 20 and 21), make sure power to the motor circuit is off and install a jumper between the terminals Com 1-2 — 1 (19 and 20). When the circuit is powered up, the valve should start to open. If it does not, check the wiring between the terminal and the actuating motor and refer to any installation or troubleshooting information supplied with the motor.
PAGE 14
Step 3 - The control tests relays 3 and 4 using the procedure described in Step 2. Step 4 - If the DIP switches are set to Zone 1 Heating and Zone 2 Heating, the control tests relays 1 and 2 using the procedure described in Step 2. - If the DIP switch is set to Zone 2 Ventilating or its is set to Zone 2 Heating and an RTU is connected to RTU 2, the control turns on relay 2 for 10 seconds.
PAGE 15
STEP NINE BEFORE YOU LEAVE • Make sure the wiring safety dividers are installed in their proper locations between compartments with different voltages. • Install the wiring cover over the wiring chamber and secure it to the base with the two screws provided. Place the front cover on the control and snap it into place. Install a lock if security is required. • A sticker has been provided with the control. It is designed to be placed over the Zone 1 ...
PAGE 16
Technical Data Zone Control 367 One & Two Stage / One Stage & Floating — — — — — — Power supply Pump Relay Zone Relays Maximum linkage Sensors included: required: — — — — — optional: Timer UnOcc. Duration Unoccupied — — — D 367, A 367, D 001, Essays Microprocessor PID control; This is not a safety (limit) control. 3.1 lb. (1400 g), Enclosure A, PVC plastic 6-5/8” H x 7-9/16” W x 2-13/16” D (170 x 193 x 72 mm) CSA NRTL / C, meets ICES & FCC regulations for EMI/RFI.