Dwyer TLVT1 - Manual

Model TLVT1
Digital Touchscreen Programmable
Thermostat with Heat Pump
120515
CAUTION:
1. Turn off any electrical devices (e.g. heater,
cooler) that are connected to the unit before
installation and maintenance.
2. The installer must be a trained service engineer.
3. Disconnect the supply before battery replacement.
4. Do not dispose the used up battery with the
household waste. Please refer to your local area
for proper disposal.
5. It must be mounted on a dry clean indoor place.
Feature List

Thermostat / Heat-pump Selection (software selectable)

Fan On / Auto

Battery Powered (2 “AA” alkaline batteries)

7-day (Monday to Sunday), 4-timezone section and
temperature program settings

Temperature display in o F or o C

Temperature Measurable Range : 32 ~ 99 o F / 0 ~ 40 o C

Program Copy for fast programming

EEPROM stores heat and cool program settings

Program Override Mode (Temporary / Permanent)

Real clock in 12 hr / 24 hr

Filter, energy and UV lamp usage record

Adjustable interval time for filter, energy and UV usage

Energy Saving Index

Defrost function

Cleaning Screen mode

Calendar

Holiday Mode

Security Mode
Wiring
 When two-transformer system is used, connect the wires to
R
H
and R
C
accordingly to the diagram shown.
When single-transformer system is used, connect R
H
and R
C
together.
 There are two wiring configurations: thermostat or
heat-pump.
Please select the configuration to be used and then connect
the appliances accordingly.
Thermostat
Terminals Device
R
H
24Vac supply for heater
R
C
24Vac supply for cooler
W 1 st stage heating
W
2
2 nd stage heating
Y 1 st stage cooling
Y
2
2 nd stage cooling
G Fan
Heat-pump
Terminals Device
R
H 24Vac supply
R
C
E Emergency Heat
W 2 Auxiliary Heat
Y 1 st stage compressor
Y 2 2 nd stage compressor
G Fan
B Changeover valve for heat
O Changeover valve for cool
Pull all cables back into wall prior to avoid trapping wires.
Do not use metal conduit or of cable provided with a metal sheath.
Recommend adding fuse or protective device in the live circuit.
Mounting
1. Base housing
I. Adjust the base on the wall or junction box and ensure
the base is at surface level and cover the junction box
comfortably.
II. If necessary, pull the cables out at the middle hole of the
base.
III. If necessary, place the 2 pcs of wall anchors at the wall.
IV. Fasten the base with the 2 pcs of long screws.
V. Place the cables at the hole near the terminal block.
2. Insert 2 AA batteries into the battery case on the thermostat
(Please observe polarity).
3. Hold the thermostat on the base. Align the screw blocks with
the pins on the back of the thermostat.
4. Push the thermostat straight onto the base until snaps into
place.
Setup Mode
There are 10 settings in the setup mode:
1.
Calendar
2. 12 / 24 hour selection
3. o C / o F display selection
4. HE / HG selection
5. Thermostat / Heat-pump selection
6. Control system selection
7. Span and Differential selection
8. Delay / Long Delay selection
9. DST (Daylight Saving Time) Selection
10. Screen lock selection
To enter setup mode, press and hold SYSTEM for 5 seconds.
In setup mode, press EXIT to discard changes made to current
setting and exit setup mode. Press CONFM to apply changes and
proceed to next setting.
Set Calendar
Press / to change year, month and day accordingly.
Press CONFM to apply changes and proceed to next setting.
12/24 hour
Press / to toggle between 12 and 24 hour mode.
Press CONFM to apply changes and proceed to next setting.
o C / o F Selection
Press / to toggle between o C or o F temperatuire unit.
Press CONFM to apply changes and proceed to next setting.
HE / HG Selection
Press / toggle between HE / HG selection.
Press CONFM to apply changes and proceed to next setting.
When fan is in auto mode and HE is selected, fan will be turned on
as long as heater / cooler is turned on.
When fan is in auto mode and HG is selected, fan will only be
turned on during cool mode.
HE HG
Heat On Fan On Fan Off
Cool On Fan On Fan On
* Heat-pump discard HE/HG selection except for emergency heat
Thermostat / Heat-pump
Press / to toggle between thermostat and heat-pump
selection.
“th” represents thermostat.
“HP represents heat-pump.
Press CONFM to apply changes and proceed to next setting.
Control System Selection
Press / to toggle between control system selection.
Press CONFM to apply changes and proceed to next setting.
Selectable configurations are shown as follow :
Thermostat
Configuration Display Terminal Conection
1 heat 1 cool 1H1C R H , R C , W, Y
1 heat 2 cool 1H2C R
H
, R
C
, W, Y, Y
2
2 heat 1 cool 2H1C R
H
, R
C
, W, W
2
, Y
2 heat 2 cool 2H2C R H , R C , W, W 2 , Y, Y 2
* Connect fan ( terminal : G ) if necessary.
Heat-pump
Configuration Display Terminal Conection
1 heat 1 cool 1H1C R
H
, R
C
, Y
,
, B, O
2 heat 2 cool 2H2C R
H
, R
C
, Y, Y
2
, B, O
2 heat 2 cool
Axuliary heat
3H2C R
H
, R
C
, W
2
, Y, Y
2
* Connect fan ( terminal : G ) if necessary.
* Emergency Heat ( terminal : E ) is used for defrost control.
Connect it if necessary.
Span and differential Selection
“P” represents span setting.
“d” represents differential setting.
Span and differential setting units will be changed according to the
temperature unit selected by user.
The selectable values are 0.5°C(1°F) / 1.0°C(2°F) / 1.5°C(3°F).
The default span and differential settings are 0.5
o C / 1 o F.
Press / to change the values. Press CONFM to apply
changes and proceed to next setting.
Delay / Long Delay Selection
Press / to toggle between delay and long delay selection.
Press CONFM to apply changes and proceed to next setting.
Delay for heat / cool on to prevent short cycling of system that
may damage the appliance.
“dE” represents delay. “L dE” represents long delay.
Delay Long delay
Heat mode 5~10 sec 4~5 min
Cool mode 4~5 min 4~5 min
For Heat-pump configuration, it will always be a long delay
irrespecting to this selection setting.
DST (Daylight Saving Time)
Press / to toggle on/off of the DST function.
* The DST used is based on USA time-zone.