SEELEY INTERNATIONAL Braemar Ecostar TQ3, Installation Manual

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14 SEELEY INTERNATIONAL – INSTALLATION MANUAL
Check high gas

High gas pressure:
- Natural Gas Nominal 875 Pa (825 to 925 Pa)
- Propane Nominal 2250 Pa (2050 to 2450 Pa)

Adjust only if outside this range

USE LARGE HIGH GAS ADJUSTMENT SCREW - hold small
adjustment screw still
Check low gas

Remove one lead from modulating coil (LOW VOLTAGE, 0-17 Vdc)

Low gas pressure:
- Natural Gas Nominal 100 Pa (90 to 110 Pa)
- Propane Nominal 180 Pa (170 to 190 Pa)

Adjust only if outside this range

USE SMALL LOW GAS ADJUSTMENT SCREW - hold large
adjustment screw still
Re-check high gas

Re-connect lead to modulating coil

High gas pressure:
- Natural Gas Nominal 875 Pa (825 to 925 Pa)
- Propane Nominal 2250 Pa (2050 to 2450 Pa)

Adjust only if outside this range

USE LARGE HIGH GAS ADJUSTMENT SCREW - hold small
adjustment screw still
High gas
adjustment
screw
Low gas
adjustment
screw
Modulating
coil leads
Outlet pressure
test point
ENSURE BOTH
LEADS ARE
CONNECTED TO
MODULATING COIL
WHEN FINISHED
Run heater and check pressure at outlet test point, adjust if
necessary:
- All natural gas models: 875 +/- 50 Pa
Run heater on HIGH and check pressure at outlet test point,
adjust if necessary:
- All natural gas models:
875 +/- 50 Pa (980 +/- 50 Pa for TQ435)
- Propane models:
- TQ4/15/20/25 2500 +/- 200Pa
- TQ430 1900 +/- 200Pa
- TQ516 2500 +/- 200Pa
- TQ23/32 1700 +/- 200Pa
Reduce fan speed and allow heater to switch to LOW and
check pressure at outlet test point:
- All natural gas models:
400 +/- 20 Pa (450 +/- 20 Pa for TQ435)
- Propane models:
- TQ4/15/20/25 1100 +/- 100Pa
- TQ430 1000 +/- 100Pa
- TQ516 1100 +/- 100Pa
- TQ23/32 800 +/- 100Pa
OUTLET PRESSURE
TEST POINT
REGULATOR
ADJUSTMENT
COVER
OUTLET PRESSURE
TEST POINT
LOW PRESSURE
ADJUSTMENT
HIGH PRESSURE
ADJUSTMENT
Gas Out
Gas Out
COMMISSIONING - INSTALLER OR COMMISSIONING AGENT
Installation checks

Check for gas leaks - rectify any leaks found.
- Natural Gas 1.13kPa
- Propane 2.75kPa

Check for gas leaks - rectify any leaks found.

Check that the flue system is connected, sealed and installed with appropriate clearances.

Check that Controller is wired correctly and installed in a suitable location.

Check that the heater is level in both directions (critical for TQ5, TQM6, TQS5, TQS6 heaters to allow correct drainage of condensate).
Gas pressure checks

Connect a manometer to the outlet pressure test point on the gas valve.

Start heater as described in Owner’s Manual.

Wait 30 seconds after heater lights to ensure heater has reached high gas rate.
Commissioning continued
Modulating heaters
Commissioning continued
Non modulating heaters
TQM516
TQM520
TQM5X20
TQM530
TQM618
TQM623
TQM6X23
TQM5X30
TQM632
TQM6X32
TQS420
TQS4X20
TQS523
TQS5X23
TQS623
TQS6X23
TQ315
TQ320
TQ3X20
TQ325
TQ3X25
TQ330
TQ3X30
Single stage gas valve
Two stage gas valve
TQ415
TQ420
TQ4X20
TQ425
TQ4X25
TQ430
TQ4X30
TQ435
TQ516
TQ523
TQ5X23
TQ532
TQ5X32
TQS320
TQS3X20
INLET PRESSURE TEST
POINT
INLET PRESSURE TEST
POINT
INLET PRESSURE TEST
POINT