Camping Interior Propex - Revision history

CovKid: /* Propex Heater Use */

2016-04-06T05:42:48Z

Propex Heater Use

← Older revision		Revision as of 05:42, 6 April 2016
Line 53:		Line 53:
	(7) When the cabin temperature reaches the set level the unit will switch off; this will be indicated by the green light on the thermostat switching off but the red light (top light on the thermostat) will stay on.		(7) When the cabin temperature reaches the set level the unit will switch off; this will be indicated by the green light on the thermostat switching off but the red light (top light on the thermostat) will stay on.

	(8) Propex Heaters are fitted with a post-purge cycle for cooling the unit down after operation. This is controlled by a temperature sensor inside the heater which, when activated, will turn the red light green		(8) Propex Heaters are fitted with a 'post-purge' cycle for cooling the unit down after operation. This is controlled by a temperature sensor inside the heater case which, when activated, will turn the red light green
	indicating that the heater will run ~~on the~~ "fan only" mode after it has been switched off. The post-purge sensor may also be triggered after the unit has switched off. This is caused by heat radiating off the		indicating that the heater will run in "fan only" mode after it has been switched off. The post-purge sensor may also be triggered after the unit has switched off. This is caused by heat radiating off the
	heat exchanger.		heat exchanger. Without this. any left-over heat inside the case would damage components so the fan cools it down.

	(9) If the thermostat switch is moved to the right, it will operate the fan on its own for blowing cool air. In this instance the red power light will turn green and the thermostat dial will be overridden.		(9) If the thermostat switch is moved to the right, it will operate the fan on its own for blowing cool air. In this instance the red power light will turn green and the thermostat dial will be overridden.

CovKid: /* Propex Heater Use */

2016-04-06T05:36:54Z

Propex Heater Use

← Older revision		Revision as of 05:36, 6 April 2016
Line 43:		Line 43:
	temperature will be in the cabin when the thermostat switches the heater off.		temperature will be in the cabin when the thermostat switches the heater off.

	(4) When the ignition sequence commences the fan will operate on a six-second pre-purge cycle to clean out the burner~~. In reality this time period may vary. My own propex takes two minutes to purge~~.		(4) When the ignition sequence commences the fan will operate on a six-second pre-purge cycle to clean out the burner.

	(5) After pre-purge the spark generator will automatically cut in and regular sparking will be heard for the next six seconds during which ignition will occur.		(5) After pre-purge the spark generator will automatically cut in and regular sparking will be heard for the next six seconds during which ignition will occur.

CovKid: /* Propex Heater Use */

2016-04-06T05:36:26Z

Propex Heater Use

← Older revision		Revision as of 05:36, 6 April 2016
Line 43:		Line 43:
	temperature will be in the cabin when the thermostat switches the heater off.		temperature will be in the cabin when the thermostat switches the heater off.

	(4) When the ignition sequence commences the fan will operate on a six-second pre-purge cycle to clean out the burner.		(4) When the ignition sequence commences the fan will operate on a six-second pre-purge cycle to clean out the burner. In reality this time period may vary. My own propex takes two minutes to purge.

	(5) After pre-purge the spark generator will automatically cut in and regular sparking will be heard for the next six seconds during which ignition will occur.		(5) After pre-purge the spark generator will automatically cut in and regular sparking will be heard for the next six seconds during which ignition will occur.

CovKid: /* Slow to heat up */

2015-11-24T07:21:37Z

Slow to heat up

← Older revision		Revision as of 07:21, 24 November 2015
Line 91:		Line 91:
	==Slow to heat up==		==Slow to heat up==

	In colder temperatures, you may find it takes an age for the Propex to heat up. This is invariably because its pulling in freezing cold air. Propex recommend that the inlet pipe (the cold one - NOT the exhaust) be fed back to the interior so its at least sucking in moderately warmer air. It will save on gas too.		In colder temperatures, you may find it takes an age for the Propex to heat up. This is invariably because its pulling in freezing cold air from outside. Propex recommend that the inlet pipe (the cold one - NOT the exhaust) be fed back to the interior so its at least sucking in moderately warmer air. It will save on gas too.

	==Testing Propex Heater==		==Testing Propex Heater==

CovKid: /* Adjusting Sensitivity */

2015-11-24T07:20:27Z

Adjusting Sensitivity

← Older revision		Revision as of 07:20, 24 November 2015
Line 87:		Line 87:

	'''IMPORTANT:''' You don't want it '''so''' sensitive that the heater cuts in and out '''too''' regularly as it will be less economic to run then. Trial and error may be needed to get it just right. Once you've got it right - leave well alone.		'''IMPORTANT:''' You don't want it '''so''' sensitive that the heater cuts in and out '''too''' regularly as it will be less economic to run then. Trial and error may be needed to get it just right. Once you've got it right - leave well alone.


			==Slow to heat up==

			In colder temperatures, you may find it takes an age for the Propex to heat up. This is invariably because its pulling in freezing cold air. Propex recommend that the inlet pipe (the cold one - NOT the exhaust) be fed back to the interior so its at least sucking in moderately warmer air. It will save on gas too.

	==Testing Propex Heater==		==Testing Propex Heater==

CovKid: /* Adjusting Sensitivity */

2015-01-27T13:03:05Z

Adjusting Sensitivity

← Older revision		Revision as of 13:03, 27 January 2015
Line 77:		Line 77:
	==Adjusting Sensitivity==		==Adjusting Sensitivity==

	If you're finding that even after setting desired temperature for your Propex, it starts to get chilly and the heater still hasn't kicked in as soon as you'd like, ~~there~~ is a small preset adjuster on the thermostat circuit board. This adjuster is a hysteresis control which can alter the temperature differential from as wide as 4°C to as little as 1/2°C~~. Essentially this is the reaction sensitivity for when the heater kicks in again after its gone off~~.		If you're finding that even after setting desired temperature for your Propex, it starts to get chilly and the heater still hasn't kicked in as soon as you'd like and you're constantly having to nudge or adjust the thermostat dial, the sensitivity may need adjustment. There is a small preset adjuster on the thermostat circuit board. This adjuster is a hysteresis control which can alter the temperature differential from as wide as 4°C to as little as 1/2°C.

	To ~~adjust the thermostat~~, first pull the dial knob off and remove case by undoing the screw beneath the knob.		To gain acces to it, first pull the dial knob off and remove case by undoing the screw beneath the knob.

	If you look carefully at the board you should see a small white or blue round component, into which you can insert a tiny screwdriver and turn to adjust. Note its present position for reference. There is a small arrow in the centre to show which way it is adjusted.		If you look carefully at the board you should see a small white or blue round component, into which you can insert a tiny screwdriver and turn to adjust. Note its present position for reference. There is a small arrow in the centre to show which way it is adjusted.

CovKid: /* Remote Controlled Propex */

2015-01-27T12:38:53Z

Remote Controlled Propex

← Older revision		Revision as of 12:38, 27 January 2015
Line 151:		Line 151:
	[[File:mapolcases.jpg]]		[[File:mapolcases.jpg]]

	An LED that is easy to see at a distance when the heater is actuated by the remote is a must. The main reason is that when the heater thermostat switches the burner off when optimum temperature is reached, normally the fan only will kick in as part of the cool-down process (independent of rocker OR remote). When this happens, the remote won't have any effect and you have to look at the thermostat's own on/off LED to determine if remote action is on or off. Thats fine if thermostat can be easily seen but when it can't, you'll lose track of whether you're on or off.		An LED that is easy to see at a distance when the heater is actuated by the remote is a must. The main reason is that when the heater thermostat switches the burner off when optimum temperature is reached, normally the fan only will kick in as part of the cool-down process (independent of rocker OR remote). When this happens, the remote won't have any effect and you have to look at the thermostat's own on/off LED to determine if remote action is on or off. Thats fine if thermostat can be easily seen but when it can't, you'll lose track of whether you're on or off. Without an indicator, the only way around it is to use remote as normal but when you get in, turn off at remote and turn heater on manually.

	A more prominent light is therefore advised. Maplins do what they call an alarm LED - basically a flashing red LED that you can run direct to any 12v source. You could simply run from from the 'on' light on the thermostat but thinking about it, you don't want a bright light flashing in your camper every single time the heater is on, so I would suggest that this is wired at the remote receiver instead. That way it won't flash when you switch the heater on from inside but it will if fired up via remote. Ghost123UK and I discussed the LED and he (rightly) suggested it actually take its power from the relay coil in the remote receiver - that makes a lot of sense since it would be unaffected by the rocker switch and will supply the 12v needed for flashing LED.		A more prominent light is therefore advised. Maplins do what they call an alarm LED - basically a flashing red LED that you can run direct to any 12v source. You could simply run from from the 'on' light on the thermostat but thinking about it, you don't want a bright light flashing in your camper every single time the heater is on, so I would suggest that this is wired at the remote receiver instead. That way it won't flash when you switch the heater on from inside but it will if fired up via remote. Ghost123UK and I discussed the LED and he (rightly) suggested it actually take its power from the relay coil in the remote receiver - that makes a lot of sense since it would be unaffected by the rocker switch and will supply the 12v needed for flashing LED.

CovKid: /* Adjusting Sensitivity */

2015-01-27T12:35:45Z

Adjusting Sensitivity

← Older revision		Revision as of 12:35, 27 January 2015
Line 77:		Line 77:
	==Adjusting Sensitivity==		==Adjusting Sensitivity==

	If you're finding that even after setting desired temperature for your Propex, it starts to get chilly and the heater still hasn't kicked in as soon as you'd like, there is a small preset adjuster on the thermostat circuit board. This adjuster is a hysteresis control which can alter the temperature differential from 4°C to 1/2°C. Essentially this is the reaction sensitivity for when the heater kicks in again after its gone off.		If you're finding that even after setting desired temperature for your Propex, it starts to get chilly and the heater still hasn't kicked in as soon as you'd like, there is a small preset adjuster on the thermostat circuit board. This adjuster is a hysteresis control which can alter the temperature differential from as wide as 4°C to as little as 1/2°C. Essentially this is the reaction sensitivity for when the heater kicks in again after its gone off.

	To adjust the thermostat, first pull the dial knob off and remove case by undoing the screw beneath the knob.		To adjust the thermostat, first pull the dial knob off and remove case by undoing the screw beneath the knob.

CovKid: /* Adjusting Sensitivity */

2015-01-27T12:34:46Z

Adjusting Sensitivity

← Older revision		Revision as of 12:34, 27 January 2015
Line 77:		Line 77:
	==Adjusting Sensitivity==		==Adjusting Sensitivity==

	If you're finding that even after setting desired temperature it starts to get chilly and the heater still hasn't kicked in as soon as you'd like, ~~thre~~ is a preset adjuster on the thermostat circuit board. This adjuster ~~preset~~ is a hysteresis control which can alter the temperature differential from 4°C to 1/2°C. ~~This~~ is ~~the basically~~ the reaction sensitivity for when the heater kicks in again after its gone off.		If you're finding that even after setting desired temperature for your Propex, it starts to get chilly and the heater still hasn't kicked in as soon as you'd like, there is a small preset adjuster on the thermostat circuit board. This adjuster is a hysteresis control which can alter the temperature differential from 4°C to 1/2°C. Essentially this is the reaction sensitivity for when the heater kicks in again after its gone off.

	To adjust the thermostat, first pull the dial knob off and remove case by undoing the screw beneath the knob.		To adjust the thermostat, first pull the dial knob off and remove case by undoing the screw beneath the knob.
Line 86:		Line 86:
	The preset is not a linear control and most of the adjustment is actually toward the anticlockwise endstop.		The preset is not a linear control and most of the adjustment is actually toward the anticlockwise endstop.

	'''IMPORTANT:''' You don't want it '''so''' sensitive that the heater cuts in and out '''too''' regularly as it will be less economic to run then. Trial and error may be needed to get it just right.		'''IMPORTANT:''' You don't want it '''so''' sensitive that the heater cuts in and out '''too''' regularly as it will be less economic to run then. Trial and error may be needed to get it just right. Once you've got it right - leave well alone.

	==Testing Propex Heater==		==Testing Propex Heater==

CovKid: /* Adjusting Sensitivity */

2015-01-27T12:30:15Z

Adjusting Sensitivity

← Older revision		Revision as of 12:30, 27 January 2015
Line 77:		Line 77:
	==Adjusting Sensitivity==		==Adjusting Sensitivity==

	~~The Adjuster~~ preset is a hysteresis control which can alter the temperature differential from 4°C to 1/2°C. This is the basically the reaction sensitivity for when the heater kicks in again after its gone off~~. If you're finding that even after setting desired temperature it starts to get chilly and the heater still hasn't kicked in, this preset may be the cause~~.		If you're finding that even after setting desired temperature it starts to get chilly and the heater still hasn't kicked in as soon as you'd like, thre is a preset adjuster on the thermostat circuit board. This adjuster preset is a hysteresis control which can alter the temperature differential from 4°C to 1/2°C. This is the basically the reaction sensitivity for when the heater kicks in again after its gone off.

	To adjust the thermostat, first pull the dial knob off and remove case by undoing the screw beneath the knob.		To adjust the thermostat, first pull the dial knob off and remove case by undoing the screw beneath the knob.
Line 84:		Line 84:

	For maximum sensitivity turn the preset fully anticlockwise, and for minimum sensitivity turn it clockwise.		For maximum sensitivity turn the preset fully anticlockwise, and for minimum sensitivity turn it clockwise.
	The preset is not a linear control and most of the adjustment is toward the anticlockwise endstop.		The preset is not a linear control and most of the adjustment is actually toward the anticlockwise endstop.

	'''IMPORTANT:''' You don't want it '''so''' sensitive that the heater cuts in and out '''too''' regularly as it will be less economic to run then. Trial and error may be needed to get it just right.		'''IMPORTANT:''' You don't want it '''so''' sensitive that the heater cuts in and out '''too''' regularly as it will be less economic to run then. Trial and error may be needed to get it just right.