Nipawin Pineview Lodge

Lighting
The following table provides descriptions of the existing and proposed lighting conditions for different areas of the facility.

Pinehaven Boiler Control Upgrade
Overview
Heating for Pinehaven Lodge is provided by hot water supplied by two “Hydrotherm” atmospheric gas fired boilers (26 years old) rated at 250MBH. This system has one circulating pump in the primary loop and feeds the hot water radiators.

Scope
Install a new indoor/outdoor controller and reset the hot water supply temperature based on outside air temperature to utilized energy efficient control strategies.

Boiler Flue Dampers
Overview
In the case of combustion appliances vented to the atmosphere, average standby time ranges from 85 to 90 percent if they are sized properly for their design loads. During this time, warm room air is drawn through the stack via the draft hood or dilution air inlet at a rate proportional to the stack height, diameter and outdoor temperature. More air is drawn through the vent immediately after the appliance shuts off and the flue is still hot. When closed a vent damper prevents residual heat from being drawn up the warm vent.

Scope
Electromechanical vent dampers will be installed on sixteen atmospheric boiler stacks. The electromechanical vent damper is coupled with the gas valve. For example, the vent damper will start to open on a call for heat. After a short delay of 15 to 30 seconds to ensure that the damper is open, the gas valve and ignition are activated. Conversely, the damper will close when the heat demand is met and the gas valve is closed.

Building Automation Upgrade
Overview
Controls at the Pineview Lodge are a series of pneumatics, thermostats and time-clocks. There is no central BAS system.
Scope
A new Honeywell Excel 5000 building automation system will be installed to schedule and control the major HVAC equipment with a networked operator interface that is connected to the main hub in Tisdale. The new controls will improve the control of the heating water, allowing for an outdoor ambient temperature reset schedule. Pumping schedules will also be implemented with the new controls to ensure that the main and subsequent circulation pumps are turn off during non-heating months. Also, air handling units will be scheduled based upon a daily schedule and seasonal schedule. The boiler plant will be automated with an outside air reset and summer shutdown, and the boilers & heating pumps will operate on an occupied/unoccupied schedule based on OAT.

AHU-1 (A & B Wings)
Overview
AHU-1 is a mixed air unit (84% OA) with supply fan only, a 20ton D/X cooling coil and a heating coil with a heating circulation pump and a 3-way valve controlling hot water flow through the coil. This unit is serving 2 zones, A & B Wings and has a humidifier and a reheating coil in the ductwork supplying air to each zone. It is controlled by pneumatic controls currently scheduled for 24/7 operation.

Scope
3 zone dampers will be installed in selected areas and a motion sensor will be installed in B22 (Guest Dining).
A VFD will be installed on the supply fan (7.5hp, 208/3, 23 Amp) and all applicable exhaust/return fans will be interlocked and configured with override control. All necessary DDC points and controllers will be added. The dampers will be programmed to open at 6:00am and close at 8:00pm.

AHU-2 (C Wing)
Overview
AHU-2 is similar to AHU-1, but is serving only one zone, the west wing or C wing; outside air is only 2% because a large rip in the outside air intake ductwork allows air from crawl space to get into. The unit is controlled with pneumatic controls currently scheduled for 24/7 operation.

Scope
2 zone dampers will be installed in selected areas and a motion sensor will be installed in C12 (Lounge).
A VFD will be installed on the supply fan (7.5hp, 208/3, 23 Amp) and all applicable exhaust/return fans will be interlocked and configured with override control. All necessary DDC points and controllers will be added. The dampers will be programmed to open at 6:00am and close at 8:00pm.

AHU3 (Link)
Overview
AHU-3 is a recirculation unit with a 2ton D/X cooling coil and heating coil. A 3-way valve controls water flow through the heating coil.

Scope
The unit will be scheduled with a night setback strategy during the unoccupied period (8:00pm to 5:00am).

AHU-5 (Lockers)
Overview
AHU-5 is a dedicated 100% outside air unit with a 2ton D/X cooling coil and heating coil serving the locker room; a 3-way valve controls water flow through the heating coil. This unit has pneumatic controls currently scheduled for 24/7 operation

Scope
Occupancy sensors will be installed to shut down the unit during the unoccupied period (6:00pm to 6:00am), and it will be interlocked with associated exhaust fans. All necessary DDC points and controllers will be added.

AHU-6 (Offices)
Overview
AHU-6 is a mixed air unit with supply fan only, a 2.5ton D/X cooling coil and heating coil; a recirculation heating pump and a 3-way valve control hot water flow through the heating coil. This unit has pneumatic controls currently scheduled for 24/7 operation

Scope
The unit will be scheduled off during the unoccupied period (a push-button override will be provided), and it will be interlocked with associated exhaust fans. All necessary DDC points and controllers will be added.
 

Perimeter Radiator Reflectors
Overview
Wall areas, behind the perimeter steam radiators, are significantly hotter than other wall areas within the building. These hot areas transmit significant amounts of heat to the outside thus reducing the effectiveness of perimeter radiation.

Scope
Reflectors designed specifically for application on walls behind heating radiators will be installed to reflect energy back into the building space. In addition, the insulating pockets of air behind the heat reflectors further reduce heat losses normally due to convective and conductive processes. These reflectors will greatly improve the effectiveness of the existing radiators, potentially allowing the heating loop temperature to be reduced and thus increasing the overall heating system efficiency and occupant comfort.
 

Vending Machine Control
Overview
Cold beverages are available for purchase at this site from a single refrigerated beverage dispensing machine. It has self contained refrigeration and illumination that are currently running constantly, regardless of whether people are in the area to purchase beverages.

Scope
A Vending Miser control will be implemented on refrigerated vending machines within the facility. It will be wall mounted and plugged into the receptacle providing power to the existing vending machine, and the vending machine will then be plugged into the Vending Miser receptacle. It can be relocated with the vending machine.
A passive infra-red sensor detects occupants and allows the machine to power down when the surrounding area is vacant. The device also monitors room temperature and vending machine compressor operation to automatically re-power the cooling system at one to three hour intervals to ensure that drinks remain cool.
Savings result because the machine lighting is only on when the area is occupied, and the compressor does not short cycle, which increases the efficiency and life span of the compressor.
 

Building Envelope Sealing
Overview
An investigation to upgrade the current conditions of the building envelope was conducted by CANAM Building Envelope Specialist. The results of this investigation have uncovered several areas where the building envelope can be upgraded in order to reduce heating costs. Most of the areas where improvements may be made within the confines of the performance contract involve low cost sealing of identified cracks around doorways.

Scope
The scope of work detailed by CANAM recommends the weather sealing of 32 exterior doors (including courtyard doors), and weather stripping of 1 interior door to isolate the mechanical room. CANAM also recommends window sealing on a total of 275’ of window perimeter as the windows with wood awnings were found to be very leaky during the site audit. As well, Minimal penetrations were found in one interior wall that will be sealed with fire rated sealant.
 

Water Conservation Measures
Overview
Treated water is a carefully manufactured product, which appears in the facilities only after traveling through many miles of pipeline and lengthy treatment process. It’s a vulnerable resource that shouldn’t be wasted. Water savings can be realized through a variety of methods including low flow toilets as well as sink faucet moderators.

Scope
Water Matrix recommends that 107 toilets be upgraded to low flow models and 107 sink faucets be fitted with low flow aerators.

Parking Plug Control
Overview
There are 17 duplex parking plugs, serving 34 parking stalls, that are 60% occupied during the winter months. There are currently no controls on these plugs.

Scope
IPLC controllers will be installed to replace 17 duplex receptacles and programmed to cycle 40% of the time when the temperature is between -5C and -15C, 70% of the time between -15C and -25C and 100% of the time when the temperature is -25C or colder.

Backflow Prevention (VFA)
Overview
Backflow occurs when the water flows in the opposite direction from its normal flow. The cause of a backflow is a change in pressures. This reversed direction of water flow may allow contaminants to enter the drinking water system through cross-connections. Backflow Prevention is a strategy whereby a valve is placed in the domestic water supply line of a given facility in order to prevent contamination by pollutants due to ‘backflow’ in the system. Examples of testable backflow preventers used for medium to high hazard processes include: reduced-pressure principle assemblies, double-check valve assemblies and pressure vacuum breaker assemblies.

Scope
Backflow Prevention double-check valve assemblies will be installed in the fire pump water supply pipes in order to comply with the 1995 National Building Code part 7.6.2.3 and CSA.Z317.1 Canadian Standards Association Special Requirements for Plumbing Installations in Health Care Facilities, Section 6.3.3.5.