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The installer must ensure that this control and its wiring are isolated and/or shielded from strong sources of electromagnetic noise.
Conversely, this Class B digital apparatus complies with Part 15 of the FCC Rules and meets all requirements of the Canadian
Interference-Causing Equipment Regulations. However, if this control does cause harmful interference to radio or television reception,
which can be determined by turning the control off and on, the user is encouraged to try to correct the interference by reorienting or
relocating the receiving antenna, relocating the receiver with respect to this control, and/or connecting the control to a different circuit
from that to which the receiver is connected.

Cet appareil numérique de la classe B respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada.

Caution The nonmetallic enclosure does not provide grounding between conduit connections. Use grounding type bushings and jumper
wires.

Attention Un boîtier nonmétallique n’assure pas la continuité électrique des conduits. Utiliser des manchons ou des fils de accord
spécialement conçus pour la mise á la terre.

Zone Control 368  

One & Two Stage

Literature

— A 000, A 368's, D 368, D 001, D 054, D 070, D 074

Control

— Microprocessor PID control; This is not a safety (limit) control.

Packaged weight

— 2.9 lb. (1300 g), Enclosure A, PVC plastic

Dimensions

— 6-5/8” H x 7-9/16” W x 2-13/16” D (170 x 193 x 72 mm)

Approvals

— CSA NRTL / C, meets ICES & FCC regulations for EMI/RFI.

Ambient conditions

— Indoor use only, 32 to 122°F (0 to 50°C), < 90% RH non-con-

densing.

Power supply

— 120 V ±10% 50/60 Hz 5 VA

Pump relay

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

Zone relays

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

Maximum linkage

— Up to 6 Zone Controls can be linked to a tekmar reset control.

Sensors

— NTC thermistor, 10 k

Ω 

@ 77°F (25°C ±0.2°C) ß=3892

included:

None.

required:

RTU 054, RTU 055 or 10k Indoor Sensor for each active zone.
(Order separately)

Timer

— 24 hour, 1 event / day, 3 minute backup

UnOcc. Duration

— 0 to 24 hours

Unoccupied

— 40 to 100°F (4 to 38°C)

All specifications are subject to change without notice.

Printed in Canada on recycled paper.

Canada on recycle

Product design, software and literature are Copyright © 1996 by:
tekmar Control Systems Ltd. and tekmar Control Systems, Inc.

tekmar Control Systems Ltd., Canada
tekmar Control Systems, Inc., U.S.A.
Head Office: 

5100 Silver Star Road

Vernon, B.C. Canada V1

B 3K4

Tel.  (

250

) 545-7749   Fax.  (

250

) 545-0650

Control Systems

The warranty applicable to a product is as set out in the statement of warranty
policy (the "Warranty") above, receipt of which is hereby acknowledged. The
liability of tekmar is limited to those obligations identified in the warranty as
obligations of tekmar. The warranty is understood to be in substitution for any
loss, costs or damages for which tekmar might otherwise be liable at law or in
equity and in particular, in lieu of any liability for fundamental breach of
contract.

tekmar disclaims any responsibility for losses, expenses, inconveniences, or
any special, indirect, secondary, incidental or consequential damages arising
from ownership or use of any items subject to any claim hereunder, regardless
of whether such claim is stated in contract, tort or strict product liability.

This warranty is in lieu of all other warranties, express or implied, including,
without limitation, warranties of merchantability, fitness for a particular purpose,
durability or description of the product, its non-infringement of any relevant
patents or trademarks, and its compliance with or non-violation of any applicable
environmental, health or safety legislation. No implied warranties shall extend
beyond twenty-four (24) months from the production date.

Some states or provinces do not allow limitations on how long an implied warranty
lasts, so the above limitation may not apply to you. This warranty gives you specific
legal rights, and you may also have other rights which vary from state to state or
province to province.

Product Return Procedures Products that are believed to have defects in workmanship
or materials must be returned, together with a written description of the defect, to the
tekmar representative for that territory. If the address of the representative is not
known, please request it from tekmar at the telephone number listed below.

Limited Warranty 

The liability of tekmar Control Systems Ltd. and tekmar

Control Systems, Inc. ("tekmar") under this warranty is limited. Please read and
understand the conditions appearing herein.

tekmar warrants each tekmar product against defects in workmanship and materials,
when the product is installed and used in compliance with tekmar's instructions. The
warranty period is for a period of twenty-four (24) months from the production date if
the product is not installed during that period, or twelve (12) months from the
documented date of installation if installed within twenty-four (24) months from the
production date, but in any event the warranty period shall not extend beyond thirty-
six (36) months from the production date. During the warranty period, tekmar will, at
its discretion, either repair at no charge, exchange or give credit for the defective
product, provided the product is returned to tekmar.

The liability of tekmar shall be limited to the cost of parts and labour provided by tekmar
to correct defects in materials and / or work-manship or to the exchange of the
defective product for a replacement product or to the granting of credit limited to the
original cost of the product, at tekmar's discretion, and such repair, exchange or credit
shall be deemed to be the sole remedy available from tekmar. This warranty does not
cover the cost of the parts or labour to remove or to transport the defective product,
or to reinstall the repaired or replacement product. Returned products that are not
defective are not covered by this warranty.

This warranty does not apply if the product has been damaged by accident, abuse,
misuse, negligence, fire, Act of God, or has been damaged by modifications,
alterations or attachments made subsequent to purchase which have not been
authorized by tekmar, or if the product was not installed in compliance with the
local codes and ordinances, or if due to defective installation of the product.

Limited Warranty and Product Return Procedure

Technical Data

Zone Control 368

One & Two Stage

H1

144 1

Made in Canada by
tekmar Control Systems Ltd.

N

3

4

Power

L

8

9

10 11

Power
Pump Relay
Zone Relays

120 V 50/60 Hz 5 VA
120 V (ac) 6 A 1/3 hp, pilot duty 240 VA
120 V (ac) 6 A 1/3 hp, pilot duty 240 VA

Sep 96

31000266

20

19

Do not apply power here

17 18

70

°

F

(21

°

C)

40
(4)

100
(38)

UnOccupied

5

6 7

LR 58223

N R T L / C

R

Occupied

Optimum Start / Stop

UnOccupied

Timer Active

24 hr. Timer

0

12 hrs.

24

6

18

• 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

12 13 14

Com

Sen

RTU

1

RTU

2

Com

Sen

UnO

Sw

Zo

In

Com

Sen

16

15

Caution: Signal wiring must be rated at least 300V

UnOccupied

Duration

0 = always Occupied
24 = always UnOccupied

Power

Heat Required

Zone 2 / Hi stage

Zone 1 / Lo stage

2

3

4

1

Zone 4 / Hi stage

Zone 3 / Lo stage

Zo

Out

RTU

3

RTU

4

3-4

Com

3

4

1-2

Com

1

2

Test

Off

Optimum Start

Thermal Motor

Zone

Occ/UnOcc

1

3

2

Occ. only

4

System Pump

Pmp

1

2

System

Pmp

Summary of Contents for Tekmar Zone Control 368

Page 1: ...8 70 F 21 C 40 4 100 38 UnOccupied 5 6 7 LR 58223 NR T L C R Occupied Optimum Start Stop UnOccupied Timer Active 24 hr Timer 0 12 hrs 24 6 18 Dial the desired duration of the UnOccupied period Press s...

Page 2: ...eat can be supplied to the room on the coldest day of the year without requiring that the room be cold Derivative D In order to speed up the control s response to quick changes in the heating load der...

Page 3: ...ulationsonindoortemperatureonly Iftherearelargevariationsinoutdoor temperature this method cannot provide the same level of accuracy as when both indoor and outdoor sensors are used Optimum Start Stop...

Page 4: ...relay is then turned on and its on time is increased as the load increases When the heating load decreases again the on time of the Hi stage relay is reduced until the Hi stage relay is turned off co...

Page 5: ...cupied 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 Un...

Page 6: ...ng hardware and conduit fittings Before removing the knockouts check the wiring diagram and select those sections of the chamber with common voltages Do not allow the wiring to cross between sections...

Page 7: ...RTU 3 and RTU 4 If the common block is used for a Two Stage heating zone connect the RTU or Indoor Sensor to terminals Com Sen RTU 4 8 and 10 Output Connections System Pump Connect the live L side of...

Page 8: ...plied by the manufacturer If a zone pump or valve is connected to the terminals Com 1 2 2 15 and 17 follow a similar procedure as described above for the zone 1 relay If a zone pump or valve is connec...

Page 9: ...ic motor zone valves or zone pumps are used the DIP switch must be set to Off Testing the Control Functions STEP SEVEN OPERATIONAL TEST OF CONTROL FUNCTIONS The Zone Control 368 has a test routine whi...

Page 10: ...g system is turned off during the final stages of the Occupied period Timer Active The timer is set to enter the UnOccupied mode every 24 hours at the time of day the Start button was pressed STEP EIG...

Page 11: ...m Start Stop UnOccupied Timer Active Power Heat Required Occupied Optimum Start Stop UnOccupied Timer Active RTU 1 Temperature sensor open Power Heat Required Occupied Optimum Start Stop UnOccupied Ti...

Page 12: ...cable environmental health or safety legislation No implied warranties shall extend beyond twenty four 24 months from the production date Some states or provinces do not allow limitations on how long...

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